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ubuntu-cve-2026-14164
Vulnerability from osv_ubuntu
Published
2026-06-30 07:16
Modified
2026-07-22 23:16
Summary
Details

A double free issue has been identified in libarchive's RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libarchive-tools",
            "binary_version": "3.4.0-2ubuntu1.5+esm3"
          },
          {
            "binary_name": "libarchive13",
            "binary_version": "3.4.0-2ubuntu1.5+esm3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "libarchive",
        "purl": "pkg:deb/ubuntu/libarchive@3.4.0-2ubuntu1.5+esm3?arch=source\u0026distro=esm-infra/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.0-2ubuntu1.5+esm3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.0-1",
        "3.4.0-1build1",
        "3.4.0-1ubuntu2",
        "3.4.0-2ubuntu1",
        "3.4.0-2ubuntu1.1",
        "3.4.0-2ubuntu1.2",
        "3.4.0-2ubuntu1.3",
        "3.4.0-2ubuntu1.4",
        "3.4.0-2ubuntu1.5",
        "3.4.0-2ubuntu1.5+esm1",
        "3.4.0-2ubuntu1.5+esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libarchive-tools",
            "binary_version": "3.6.0-1ubuntu1.8"
          },
          {
            "binary_name": "libarchive13",
            "binary_version": "3.6.0-1ubuntu1.8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libarchive",
        "purl": "pkg:deb/ubuntu/libarchive@3.6.0-1ubuntu1.8?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.6.0-1ubuntu1.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.3-2",
        "3.4.3-2build1",
        "3.5.2-1",
        "3.5.2-1ubuntu1",
        "3.6.0-1ubuntu1",
        "3.6.0-1ubuntu1.1",
        "3.6.0-1ubuntu1.2",
        "3.6.0-1ubuntu1.3",
        "3.6.0-1ubuntu1.4",
        "3.6.0-1ubuntu1.5",
        "3.6.0-1ubuntu1.6",
        "3.6.0-1ubuntu1.7"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libarchive-tools",
            "binary_version": "3.7.2-2ubuntu0.8"
          },
          {
            "binary_name": "libarchive13t64",
            "binary_version": "3.7.2-2ubuntu0.8"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "libarchive",
        "purl": "pkg:deb/ubuntu/libarchive@3.7.2-2ubuntu0.8?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.7.2-2ubuntu0.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.6.2-1ubuntu1",
        "3.7.2-1ubuntu1",
        "3.7.2-1ubuntu2",
        "3.7.2-1.1ubuntu2",
        "3.7.2-2",
        "3.7.2-2ubuntu0.1",
        "3.7.2-2ubuntu0.2",
        "3.7.2-2ubuntu0.3",
        "3.7.2-2ubuntu0.4",
        "3.7.2-2ubuntu0.5",
        "3.7.2-2ubuntu0.6",
        "3.7.2-2ubuntu0.7"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libarchive-tools",
            "binary_version": "3.7.7-0ubuntu3.2"
          },
          {
            "binary_name": "libarchive13t64",
            "binary_version": "3.7.7-0ubuntu3.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "libarchive",
        "purl": "pkg:deb/ubuntu/libarchive@3.7.7-0ubuntu3.2?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.7.7-0ubuntu2",
        "3.7.7-0ubuntu2.1",
        "3.7.7-0ubuntu2.2",
        "3.7.7-0ubuntu3",
        "3.7.7-0ubuntu3.1",
        "3.7.7-0ubuntu3.2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libarchive-tools",
            "binary_version": "3.8.5-1ubuntu2.2"
          },
          {
            "binary_name": "libarchive13t64",
            "binary_version": "3.8.5-1ubuntu2.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "libarchive",
        "purl": "pkg:deb/ubuntu/libarchive@3.8.5-1ubuntu2.2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.8.5-1ubuntu2.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.7.7-0ubuntu3",
        "3.8.5-1ubuntu1",
        "3.8.5-1ubuntu2",
        "3.8.5-1ubuntu2.1"
      ]
    }
  ],
  "aliases": [],
  "details": "A double free issue has been identified in libarchive\u0027s RAR5 reader. During parsing of a specially crafted RAR5 archive, the filtered_buf pointer may remain stale after being freed during unpacking state reinitialization. Subsequent processing of another archive entry can trigger a second free of the same memory region, resulting in a double-free condition. Successful exploitation may cause applications using the vulnerable libarchive API to terminate unexpectedly, leading to a denial of service.",
  "id": "UBUNTU-CVE-2026-14164",
  "modified": "2026-07-22T23:16:31Z",
  "published": "2026-06-30T07:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-14164"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-14164"
    },
    {
      "type": "REPORT",
      "url": "https://access.redhat.com/security/cve/CVE-2026-14164"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/libarchive/libarchive/pull/3071"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-8581-1"
    }
  ],
  "related": [
    "USN-8581-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-14164"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • 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.


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