Vulnerability-Lookup

USN-7924-1 (UBUNTU-CVE-2025-64505)

Vulnerability from osv_ubuntu – Published: 2025-12-11 05:26 – Updated: 2026-06-25 10:47 – Source website

Summary

libpng1.6 vulnerabilities

Details

It was discovered that libpng incorrectly handled memory when processing certain PNG files, which could result in an out-of-bounds memory access. If a user or automated system were tricked into opening a specially crafted PNG file, an attacker could use this issue to cause libpng to crash, resulting in a denial of service. (CVE-2025-64505)

It was discovered that libpng incorrectly handled memory when processing 8-bit images through the simplified write API with 'convert_to_8bit' enabled, which could result in an out-of-bounds memory access. If a user or automated system were tricked into opening a specially crafted 8-bit PNG file, an attacker could use this issue to cause libpng to crash, resulting in a denial of service. (CVE-2025-64506)

It was discovered that libpng incorrectly handled memory when processing palette images with 'PNG_FLAG_OPTIMIZE_ALPHA' enabled, which could result in an out-of-bounds memory access. If a user or automated system were tricked into opening a specially crafted PNG file, an attacker could use this issue to cause libpng to crash, resulting in a denial of service. (CVE-2025-64720)

It was discovered that libpng incorrectly handled memory when processing 6-bit interlaced PNGs with 8-bit output format, which could result in an out-of-bounds memory access. If a user or automated system were tricked into opening a specially crafted PNG file, an attacker could use this issue to cause libpng to crash, resulting in a denial of service. (CVE-2025-65018)

References

URL

Type

	https://ubuntu.com/security/notices/USN-7924-1	ADVISORY
	https://ubuntu.com/security/CVE-2025-64505	REPORT
	https://ubuntu.com/security/CVE-2025-64506	REPORT
	https://ubuntu.com/security/CVE-2025-64720	REPORT
	https://ubuntu.com/security/CVE-2025-65018	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-64505",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64506",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64720",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-65018",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libpng16-16",
            "binary_version": "1.6.20-2ubuntu0.1~esm2"
          },
          {
            "binary_name": "libpng16-devtools",
            "binary_version": "1.6.20-2ubuntu0.1~esm2"
          },
          {
            "binary_name": "libpng16-tools",
            "binary_version": "1.6.20-2ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.20-2ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.20-2ubuntu0.1~esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.20-2",
        "1.6.20-2ubuntu0.1~esm1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-64505",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64506",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64720",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-65018",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libpng-tools",
            "binary_version": "1.6.34-1ubuntu0.18.04.2+esm1"
          },
          {
            "binary_name": "libpng16-16",
            "binary_version": "1.6.34-1ubuntu0.18.04.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.34-1ubuntu0.18.04.2+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.34-1ubuntu0.18.04.2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.34-1",
        "1.6.34-1ubuntu0.18.04.1",
        "1.6.34-1ubuntu0.18.04.2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-64505",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64506",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64720",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-65018",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libpng-tools",
            "binary_version": "1.6.37-2ubuntu0.1~esm1"
          },
          {
            "binary_name": "libpng16-16",
            "binary_version": "1.6.37-2ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.37-2ubuntu0.1~esm1?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.37-2ubuntu0.1~esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.37-1",
        "1.6.37-2"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-64505",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64506",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64720",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-65018",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libpng-tools",
            "binary_version": "1.6.37-3ubuntu0.1"
          },
          {
            "binary_name": "libpng16-16",
            "binary_version": "1.6.37-3ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.37-3ubuntu0.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.37-3ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.37-3build4",
        "1.6.37-3build5"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-64505",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64506",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64720",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-65018",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:24.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libpng-tools",
            "binary_version": "1.6.43-5ubuntu0.1"
          },
          {
            "binary_name": "libpng16-16t64",
            "binary_version": "1.6.43-5ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.43-5ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.43-5ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.40-1",
        "1.6.40-2",
        "1.6.40-3",
        "1.6.42-1",
        "1.6.43-1",
        "1.6.43-3",
        "1.6.43-5build1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2025-64505",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64506",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-64720",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2025-65018",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:25.10"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libpng-tools",
            "binary_version": "1.6.50-1ubuntu0.1"
          },
          {
            "binary_name": "libpng16-16t64",
            "binary_version": "1.6.50-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.50-1ubuntu0.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.50-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.47-1.1",
        "1.6.48-1",
        "1.6.49-1~exp1",
        "1.6.50-1~exp1",
        "1.6.50-1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that libpng incorrectly handled memory when processing\ncertain PNG files, which could result in an out-of-bounds memory access.\nIf a user or automated system were tricked into opening a specially\ncrafted PNG file, an attacker could use this issue to cause libpng to\ncrash, resulting in a denial of service. (CVE-2025-64505)\n\nIt was discovered that libpng incorrectly handled memory when processing\n8-bit images through the simplified write API with \u0027convert_to_8bit\u0027\nenabled, which could result in an out-of-bounds memory access. If a user\nor automated system were tricked into opening a specially crafted 8-bit\nPNG file, an attacker could use this issue to cause libpng to crash,\nresulting in a denial of service. (CVE-2025-64506)\n\nIt was discovered that libpng incorrectly handled memory when processing\npalette images with \u0027PNG_FLAG_OPTIMIZE_ALPHA\u0027 enabled, which could result\nin an out-of-bounds memory access. If a user or automated system were\ntricked into opening a specially crafted PNG file, an attacker could use\nthis issue to cause libpng to crash, resulting in a denial of service.\n(CVE-2025-64720)\n\nIt was discovered that libpng incorrectly handled memory when processing\n6-bit interlaced PNGs with 8-bit output format, which could result in an\nout-of-bounds memory access. If a user or automated system were tricked\ninto opening a specially crafted PNG file, an attacker could use this\nissue to cause libpng to crash, resulting in a denial of service.\n(CVE-2025-65018)",
  "id": "USN-7924-1",
  "modified": "2026-06-25T10:47:02Z",
  "published": "2025-12-11T05:26:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7924-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-64505"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-64506"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-64720"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-65018"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "libpng1.6 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2025-64505",
    "UBUNTU-CVE-2025-64506",
    "UBUNTU-CVE-2025-64720",
    "UBUNTU-CVE-2025-65018"
  ]
}

UBUNTU-CVE-2025-64505 (CVE-2025-64505)

Vulnerability from osv_ubuntu – Published: 2025-11-25 00:15 – Updated: 2026-04-22 07:56 – Source website

Details

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to version 1.6.51, a heap buffer over-read vulnerability exists in libpng's png_do_quantize function when processing PNG files with malformed palette indices. The vulnerability occurs when palette_lookup array bounds are not validated against externally-supplied image data, allowing an attacker to craft a PNG file with out-of-range palette indices that trigger out-of-bounds memory access. This issue has been patched in version 1.6.51.

Severity

6.1 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2025-64505	REPORT
	https://www.cve.org/CVERecord?id=CVE-2025-64505	REPORT
	https://github.com/pnggroup/libpng/security/advis…	REPORT
	https://github.com/pnggroup/libpng/pull/748	REPORT
	https://github.com/pnggroup/libpng/commit/6a528eb…	REPORT
	https://www.openwall.com/lists/oss-security/2025/…	REPORT
	https://ubuntu.com/security/notices/USN-7924-1	ADVISORY
	https://ubuntu.com/security/notices/USN-8081-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro with Legacy support add-on: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libpng12-0",
            "binary_version": "1.2.50-1ubuntu2.14.04.3+esm1"
          },
          {
            "binary_name": "libpng3",
            "binary_version": "1.2.50-1ubuntu2.14.04.3+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "libpng",
        "purl": "pkg:deb/ubuntu/libpng@1.2.50-1ubuntu2.14.04.3+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.50-1ubuntu2.14.04.3+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.2.49-4ubuntu1",
        "1.2.49-5ubuntu1",
        "1.2.50-1ubuntu1",
        "1.2.50-1ubuntu2",
        "1.2.50-1ubuntu2.14.04.1",
        "1.2.50-1ubuntu2.14.04.2",
        "1.2.50-1ubuntu2.14.04.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libpng12-0",
            "binary_version": "1.2.54-1ubuntu1.1+esm2"
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            "binary_name": "libpng3",
            "binary_version": "1.2.54-1ubuntu1.1+esm2"
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      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libpng",
        "purl": "pkg:deb/ubuntu/libpng@1.2.54-1ubuntu1.1+esm2?arch=source\u0026distro=esm-infra/xenial"
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              "fixed": "1.2.54-1ubuntu1.1+esm2"
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        "1.2.54-1",
        "1.2.54-1ubuntu1",
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      ]
    },
    {
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      "ecosystem_specific": {
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      "package": {
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      "versions": [
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      "ecosystem_specific": {
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        "binaries": [
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            "binary_name": "libpng-tools",
            "binary_version": "1.6.37-3ubuntu0.1"
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          {
            "binary_name": "libpng16-16",
            "binary_version": "1.6.37-3ubuntu0.1"
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      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.37-3ubuntu0.1?arch=source\u0026distro=jammy"
      },
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      "versions": [
        "1.6.37-3build4",
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    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
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            "binary_name": "libpng-tools",
            "binary_version": "1.6.43-5ubuntu0.1"
          },
          {
            "binary_name": "libpng16-16t64",
            "binary_version": "1.6.43-5ubuntu0.1"
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      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.43-5ubuntu0.1?arch=source\u0026distro=noble"
      },
      "ranges": [
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        }
      ],
      "versions": [
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        "1.6.40-2",
        "1.6.40-3",
        "1.6.42-1",
        "1.6.43-1",
        "1.6.43-3",
        "1.6.43-5build1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libpng-tools",
            "binary_version": "1.6.50-1ubuntu0.1"
          },
          {
            "binary_name": "libpng16-16t64",
            "binary_version": "1.6.50-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.50-1ubuntu0.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
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            {
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            },
            {
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        }
      ],
      "versions": [
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        "1.6.48-1",
        "1.6.49-1~exp1",
        "1.6.50-1~exp1",
        "1.6.50-1"
      ]
    }
  ],
  "aliases": [],
  "details": "LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. Prior to version 1.6.51, a heap buffer over-read vulnerability exists in libpng\u0027s png_do_quantize function when processing PNG files with malformed palette indices. The vulnerability occurs when palette_lookup array bounds are not validated against externally-supplied image data, allowing an attacker to craft a PNG file with out-of-range palette indices that trigger out-of-bounds memory access. This issue has been patched in version 1.6.51.",
  "id": "UBUNTU-CVE-2025-64505",
  "modified": "2026-04-22T07:56:56Z",
  "published": "2025-11-25T00:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-64505"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-64505"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pnggroup/libpng/security/advisories/GHSA-4952-h5wq-4m42"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pnggroup/libpng/pull/748"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pnggroup/libpng/commit/6a528eb5fd0dd7f6de1c39d30de0e41473431c37"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2025/11/22/1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7924-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8081-1"
    }
  ],
  "related": [
    "USN-7924-1",
    "USN-8081-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-64505"
  ]
}

UBUNTU-CVE-2025-64506 (CVE-2025-64506)

Vulnerability from osv_ubuntu – Published: 2025-11-25 00:15 – Updated: 2026-04-22 07:56 – Source website

Details

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, a heap buffer over-read vulnerability exists in libpng's png_write_image_8bit function when processing 8-bit images through the simplified write API with convert_to_8bit enabled. The vulnerability affects 8-bit grayscale+alpha, RGB/RGBA, and images with incomplete row data. A conditional guard incorrectly allows 8-bit input to enter code expecting 16-bit input, causing reads up to 2 bytes beyond allocated buffer boundaries. This issue has been patched in version 1.6.51.

Severity

6.1 (Medium)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2025-64506	REPORT
	https://www.cve.org/CVERecord?id=CVE-2025-64506	REPORT
	https://github.com/pnggroup/libpng/security/advis…	REPORT
	https://github.com/pnggroup/libpng/pull/749	REPORT
	https://github.com/pnggroup/libpng/commit/2bd84c0…	REPORT
	https://www.openwall.com/lists/oss-security/2025/…	REPORT
	https://ubuntu.com/security/notices/USN-7924-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libpng16-16",
            "binary_version": "1.6.20-2ubuntu0.1~esm2"
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        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.34-1ubuntu0.18.04.2+esm1?arch=source\u0026distro=esm-infra/bionic"
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    }
  ],
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  "id": "UBUNTU-CVE-2025-64506",
  "modified": "2026-04-22T07:56:56Z",
  "published": "2025-11-25T00:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-64506"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-64506"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pnggroup/libpng/security/advisories/GHSA-qpr4-xm66-hww6"
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      "url": "https://github.com/pnggroup/libpng/pull/749"
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      "type": "REPORT",
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      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2025/11/22/1"
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      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7924-1"
    }
  ],
  "related": [
    "USN-7924-1"
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  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-64506"
  ]
}

UBUNTU-CVE-2025-64720 (CVE-2025-64720)

Vulnerability from osv_ubuntu – Published: 2025-11-25 00:15 – Updated: 2026-04-22 07:56 – Source website

Details

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in png_image_read_composite when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly applies background compositing during premultiplication, violating the invariant component ≤ alpha × 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.

Severity

7.1 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2025-64720	REPORT
	https://www.cve.org/CVERecord?id=CVE-2025-64720	REPORT
	https://github.com/pnggroup/libpng/security/advis…	REPORT
	https://github.com/pnggroup/libpng/issues/686	REPORT
	https://github.com/pnggroup/libpng/commit/08da33b…	REPORT
	https://www.openwall.com/lists/oss-security/2025/…	REPORT
	https://ubuntu.com/security/notices/USN-7924-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libpng16-16",
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          },
          {
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          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.20-2ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/xenial"
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    {
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        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
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            "binary_version": "1.6.34-1ubuntu0.18.04.2+esm1"
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            "binary_name": "libpng16-16",
            "binary_version": "1.6.34-1ubuntu0.18.04.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.34-1ubuntu0.18.04.2+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.34-1ubuntu0.18.04.2+esm1"
            }
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          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.34-1",
        "1.6.34-1ubuntu0.18.04.1",
        "1.6.34-1ubuntu0.18.04.2"
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    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
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            "binary_name": "libpng-tools",
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            "binary_version": "1.6.37-2ubuntu0.1~esm1"
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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "libpng1.6",
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      },
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          "events": [
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              "fixed": "1.6.37-2ubuntu0.1~esm1"
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          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.37-1",
        "1.6.37-2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libpng-tools",
            "binary_version": "1.6.37-3ubuntu0.1"
          },
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            "binary_name": "libpng16-16",
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      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.37-3ubuntu0.1?arch=source\u0026distro=jammy"
      },
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        {
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      "versions": [
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      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libpng-tools",
            "binary_version": "1.6.43-5ubuntu0.1"
          },
          {
            "binary_name": "libpng16-16t64",
            "binary_version": "1.6.43-5ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.43-5ubuntu0.1?arch=source\u0026distro=noble"
      },
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            {
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            },
            {
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          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.40-1",
        "1.6.40-2",
        "1.6.40-3",
        "1.6.42-1",
        "1.6.43-1",
        "1.6.43-3",
        "1.6.43-5build1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libpng-tools",
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          },
          {
            "binary_name": "libpng16-16t64",
            "binary_version": "1.6.50-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.50-1ubuntu0.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.50-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.47-1.1",
        "1.6.48-1",
        "1.6.49-1~exp1",
        "1.6.50-1~exp1",
        "1.6.50-1"
      ]
    }
  ],
  "aliases": [],
  "details": "LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, an out-of-bounds read vulnerability exists in png_image_read_composite when processing palette images with PNG_FLAG_OPTIMIZE_ALPHA enabled. The palette compositing code in png_init_read_transformations incorrectly applies background compositing during premultiplication, violating the invariant component \u2264 alpha \u00d7 257 required by the simplified PNG API. This issue has been patched in version 1.6.51.",
  "id": "UBUNTU-CVE-2025-64720",
  "modified": "2026-04-22T07:56:56Z",
  "published": "2025-11-25T00:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2025-64720"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2025-64720"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pnggroup/libpng/security/advisories/GHSA-hfc7-ph9c-wcww"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pnggroup/libpng/issues/686"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/pnggroup/libpng/commit/08da33b4c88cfcd36e5a706558a8d7e0e4773643"
    },
    {
      "type": "REPORT",
      "url": "https://www.openwall.com/lists/oss-security/2025/11/22/1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-7924-1"
    }
  ],
  "related": [
    "USN-7924-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2025-64720"
  ]
}

UBUNTU-CVE-2025-65018 (CVE-2025-65018)

Vulnerability from osv_ubuntu – Published: 2025-11-25 00:15 – Updated: 2026-04-22 07:56 – Source website

Details

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG (Portable Network Graphics) raster image files. From version 1.6.0 to before 1.6.51, there is a heap buffer overflow vulnerability in the libpng simplified API function png_image_finish_read when processing 16-bit interlaced PNGs with 8-bit output format. Attacker-crafted interlaced PNG files cause heap writes beyond allocated buffer bounds. This issue has been patched in version 1.6.51.

Severity

7.1 (High)


                    
                      CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2025-65018	REPORT
	https://www.cve.org/CVERecord?id=CVE-2025-65018	REPORT
	https://github.com/pnggroup/libpng/security/advis…	REPORT
	https://github.com/pnggroup/libpng/issues/755	REPORT
	https://github.com/pnggroup/libpng/commit/16b5e38…	REPORT
	https://github.com/pnggroup/libpng/commit/218612d…	REPORT
	https://www.openwall.com/lists/oss-security/2025/…	REPORT
	https://ubuntu.com/security/notices/USN-7924-1	ADVISORY

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libpng16-16",
            "binary_version": "1.6.20-2ubuntu0.1~esm2"
          },
          {
            "binary_name": "libpng16-devtools",
            "binary_version": "1.6.20-2ubuntu0.1~esm2"
          },
          {
            "binary_name": "libpng16-tools",
            "binary_version": "1.6.20-2ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
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        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.20-2ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.20-2ubuntu0.1~esm2"
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          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.6.20-2",
        "1.6.20-2ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
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          {
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            "binary_version": "1.6.34-1ubuntu0.18.04.2+esm1"
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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libpng1.6",
        "purl": "pkg:deb/ubuntu/libpng1.6@1.6.34-1ubuntu0.18.04.2+esm1?arch=source\u0026distro=esm-infra/bionic"
      },
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        "1.6.34-1ubuntu0.18.04.2"
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    },
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            "binary_name": "libpng-tools",
            "binary_version": "1.6.37-2ubuntu0.1~esm1"
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      },
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  "id": "UBUNTU-CVE-2025-65018",
  "modified": "2026-04-22T07:56:56Z",
  "published": "2025-11-25T00:15:00Z",
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    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
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  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

USN-7924-1 (UBUNTU-CVE-2025-64505)

UBUNTU-CVE-2025-64505 (CVE-2025-64505)

UBUNTU-CVE-2025-64506 (CVE-2025-64506)

UBUNTU-CVE-2025-64720 (CVE-2025-64720)

UBUNTU-CVE-2025-65018 (CVE-2025-65018)

Tags

Sightings

Nomenclature

Related by attack behaviour