usn-4525-1
Vulnerability from osv_ubuntu
Published
2020-09-24 03:59
Modified
2026-06-03 10:45
Summary
linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities
Details

It was discovered that the AMD Cryptographic Coprocessor device driver in the Linux kernel did not properly deallocate memory in some situations. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-18808)

It was discovered that the Conexant 23885 TV card device driver for the Linux kernel did not properly deallocate memory in some error conditions. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-19054)

It was discovered that the VFIO PCI driver in the Linux kernel did not properly handle attempts to access disabled memory spaces. A local attacker could use this to cause a denial of service (system crash). (CVE-2020-12888)

It was discovered that the state of network RNG in the Linux kernel was potentially observable. A remote attacker could use this to expose sensitive information. (CVE-2020-16166)

It was discovered that the NFS client implementation in the Linux kernel did not properly perform bounds checking before copying security labels in some situations. A local attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2020-25212)

References
To clipboard 

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        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "linux-gcp",
        "purl": "pkg:deb/ubuntu/linux-gcp@5.4.0-1025.25?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1025.25"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3.0-1004.4",
        "5.3.0-1009.10",
        "5.3.0-1011.12",
        "5.4.0-1005.5",
        "5.4.0-1007.7",
        "5.4.0-1008.8",
        "5.4.0-1009.9",
        "5.4.0-1011.11",
        "5.4.0-1015.15",
        "5.4.0-1018.18",
        "5.4.0-1019.19",
        "5.4.0-1021.21",
        "5.4.0-1022.22",
        "5.4.0-1024.24"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-18808",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2019-19054",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12888",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-16166",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-25212",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.4.0-1024-kvm",
            "binary_version": "5.4.0-1024.24"
          },
          {
            "binary_name": "linux-headers-5.4.0-1024-kvm",
            "binary_version": "5.4.0-1024.24"
          },
          {
            "binary_name": "linux-image-unsigned-5.4.0-1024-kvm",
            "binary_version": "5.4.0-1024.24"
          },
          {
            "binary_name": "linux-kvm-headers-5.4.0-1024",
            "binary_version": "5.4.0-1024.24"
          },
          {
            "binary_name": "linux-kvm-tools-5.4.0-1024",
            "binary_version": "5.4.0-1024.24"
          },
          {
            "binary_name": "linux-modules-5.4.0-1024-kvm",
            "binary_version": "5.4.0-1024.24"
          },
          {
            "binary_name": "linux-tools-5.4.0-1024-kvm",
            "binary_version": "5.4.0-1024.24"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "linux-kvm",
        "purl": "pkg:deb/ubuntu/linux-kvm@5.4.0-1024.24?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1024.24"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3.0-1003.3",
        "5.3.0-1008.9",
        "5.3.0-1009.10",
        "5.4.0-1004.4",
        "5.4.0-1006.6",
        "5.4.0-1007.7",
        "5.4.0-1008.8",
        "5.4.0-1009.9",
        "5.4.0-1011.11",
        "5.4.0-1015.15",
        "5.4.0-1018.18",
        "5.4.0-1020.20",
        "5.4.0-1021.21",
        "5.4.0-1023.23"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-18808",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2019-19054",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12888",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-16166",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-25212",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.4.0-1025-oracle",
            "binary_version": "5.4.0-1025.25"
          },
          {
            "binary_name": "linux-headers-5.4.0-1025-oracle",
            "binary_version": "5.4.0-1025.25"
          },
          {
            "binary_name": "linux-image-unsigned-5.4.0-1025-oracle",
            "binary_version": "5.4.0-1025.25"
          },
          {
            "binary_name": "linux-modules-5.4.0-1025-oracle",
            "binary_version": "5.4.0-1025.25"
          },
          {
            "binary_name": "linux-modules-extra-5.4.0-1025-oracle",
            "binary_version": "5.4.0-1025.25"
          },
          {
            "binary_name": "linux-oracle-headers-5.4.0-1025",
            "binary_version": "5.4.0-1025.25"
          },
          {
            "binary_name": "linux-oracle-tools-5.4.0-1025",
            "binary_version": "5.4.0-1025.25"
          },
          {
            "binary_name": "linux-tools-5.4.0-1025-oracle",
            "binary_version": "5.4.0-1025.25"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "linux-oracle",
        "purl": "pkg:deb/ubuntu/linux-oracle@5.4.0-1025.25?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1025.25"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.3.0-1002.2",
        "5.3.0-1007.8",
        "5.3.0-1008.9",
        "5.4.0-1005.5",
        "5.4.0-1007.7",
        "5.4.0-1008.8",
        "5.4.0-1009.9",
        "5.4.0-1011.11",
        "5.4.0-1015.15",
        "5.4.0-1018.18",
        "5.4.0-1019.19",
        "5.4.0-1021.21",
        "5.4.0-1022.22",
        "5.4.0-1024.24"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2019-18808",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2019-19054",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "low",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-12888",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-16166",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-25212",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "linux-buildinfo-5.4.0-1019-raspi",
            "binary_version": "5.4.0-1019.21"
          },
          {
            "binary_name": "linux-headers-5.4.0-1019-raspi",
            "binary_version": "5.4.0-1019.21"
          },
          {
            "binary_name": "linux-image-5.4.0-1019-raspi",
            "binary_version": "5.4.0-1019.21"
          },
          {
            "binary_name": "linux-modules-5.4.0-1019-raspi",
            "binary_version": "5.4.0-1019.21"
          },
          {
            "binary_name": "linux-raspi-headers-5.4.0-1019",
            "binary_version": "5.4.0-1019.21"
          },
          {
            "binary_name": "linux-raspi-tools-5.4.0-1019",
            "binary_version": "5.4.0-1019.21"
          },
          {
            "binary_name": "linux-tools-5.4.0-1019-raspi",
            "binary_version": "5.4.0-1019.21"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "linux-raspi",
        "purl": "pkg:deb/ubuntu/linux-raspi@5.4.0-1019.21?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.4.0-1019.21"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "5.4.0-1007.7",
        "5.4.0-1008.8",
        "5.4.0-1011.11",
        "5.4.0-1012.12",
        "5.4.0-1013.13",
        "5.4.0-1015.15",
        "5.4.0-1016.17",
        "5.4.0-1018.20"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that the AMD Cryptographic Coprocessor device driver in\nthe Linux kernel did not properly deallocate memory in some situations. A\nlocal attacker could use this to cause a denial of service (memory\nexhaustion). (CVE-2019-18808)\n\nIt was discovered that the Conexant 23885 TV card device driver for the\nLinux kernel did not properly deallocate memory in some error conditions. A\nlocal attacker could use this to cause a denial of service (memory\nexhaustion). (CVE-2019-19054)\n\nIt was discovered that the VFIO PCI driver in the Linux kernel did not\nproperly handle attempts to access disabled memory spaces. A local attacker\ncould use this to cause a denial of service (system crash).\n(CVE-2020-12888)\n\nIt was discovered that the state of network RNG in the Linux kernel was\npotentially observable. A remote attacker could use this to expose\nsensitive information. (CVE-2020-16166)\n\nIt was discovered that the NFS client implementation in the Linux kernel\ndid not properly perform bounds checking before copying security labels in\nsome situations. A local attacker could use this to cause a denial of\nservice (system crash) or possibly execute arbitrary code. (CVE-2020-25212)\n",
  "id": "USN-4525-1",
  "modified": "2026-06-03T10:45:22Z",
  "published": "2020-09-24T03:59:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4525-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-18808"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-19054"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12888"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-16166"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-25212"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "linux, linux-aws, linux-aws-5.4, linux-azure, linux-azure-5.4, linux-gcp, linux-gcp-5.4, linux-hwe-5.4, linux-kvm, linux-oracle, linux-oracle-5.4, linux-raspi, linux-raspi-5.4 vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2019-18808",
    "UBUNTU-CVE-2019-19054",
    "UBUNTU-CVE-2020-12888",
    "UBUNTU-CVE-2020-16166",
    "UBUNTU-CVE-2020-25212"
  ]
}



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Tags
Taxonomy of the tags.





Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

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.


Detection rules are retrieved from Rulezet.