usn-4667-1
Vulnerability from osv_ubuntu
Published
2020-12-09 16:30
Modified
2026-04-22 07:36
Summary
apt vulnerability
Details

Kevin Backhouse discovered that APT incorrectly handled certain packages. A local attacker could possibly use this issue to cause APT to crash or stop responding, resulting in a denial of service.


{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-27350",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:16.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "apt",
            "binary_version": "1.2.32ubuntu0.2"
          },
          {
            "binary_name": "apt-transport-https",
            "binary_version": "1.2.32ubuntu0.2"
          },
          {
            "binary_name": "apt-utils",
            "binary_version": "1.2.32ubuntu0.2"
          },
          {
            "binary_name": "libapt-inst2.0",
            "binary_version": "1.2.32ubuntu0.2"
          },
          {
            "binary_name": "libapt-pkg5.0",
            "binary_version": "1.2.32ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "apt",
        "purl": "pkg:deb/ubuntu/apt@1.2.32ubuntu0.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.2.32ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.0.10.2ubuntu1",
        "1.1.4",
        "1.1.5",
        "1.1.10",
        "1.2.3",
        "1.2.4",
        "1.2.6",
        "1.2.7",
        "1.2.8",
        "1.2.9",
        "1.2.10",
        "1.2.10ubuntu1",
        "1.2.12~ubuntu16.04.1",
        "1.2.15",
        "1.2.15ubuntu0.2",
        "1.2.18",
        "1.2.19",
        "1.2.20",
        "1.2.24",
        "1.2.25",
        "1.2.26",
        "1.2.27",
        "1.2.29",
        "1.2.29ubuntu0.1",
        "1.2.31",
        "1.2.32",
        "1.2.32ubuntu0.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-27350",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:18.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "apt",
            "binary_version": "1.6.12ubuntu0.2"
          },
          {
            "binary_name": "apt-transport-https",
            "binary_version": "1.6.12ubuntu0.2"
          },
          {
            "binary_name": "apt-utils",
            "binary_version": "1.6.12ubuntu0.2"
          },
          {
            "binary_name": "libapt-inst2.0",
            "binary_version": "1.6.12ubuntu0.2"
          },
          {
            "binary_name": "libapt-pkg5.0",
            "binary_version": "1.6.12ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "apt",
        "purl": "pkg:deb/ubuntu/apt@1.6.12ubuntu0.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.6.12ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5",
        "1.5.1",
        "1.6~alpha5",
        "1.6~alpha7ubuntu1",
        "1.6~alpha7ubuntu2",
        "1.6~beta1",
        "1.6~rc1",
        "1.6",
        "1.6.1",
        "1.6.2",
        "1.6.3",
        "1.6.3ubuntu0.1",
        "1.6.6",
        "1.6.6ubuntu0.1",
        "1.6.8",
        "1.6.10",
        "1.6.11",
        "1.6.12",
        "1.6.12ubuntu0.1"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-27350",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "apt",
            "binary_version": "2.0.2ubuntu0.2"
          },
          {
            "binary_name": "apt-transport-https",
            "binary_version": "2.0.2ubuntu0.2"
          },
          {
            "binary_name": "apt-utils",
            "binary_version": "2.0.2ubuntu0.2"
          },
          {
            "binary_name": "libapt-pkg6.0",
            "binary_version": "2.0.2ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "apt",
        "purl": "pkg:deb/ubuntu/apt@2.0.2ubuntu0.2?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.2ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.9.4",
        "1.9.5",
        "1.9.7",
        "1.9.8",
        "1.9.9",
        "1.9.10",
        "2.0.0",
        "2.0.1",
        "2.0.1ubuntu1",
        "2.0.2",
        "2.0.2ubuntu0.1"
      ]
    }
  ],
  "aliases": [],
  "details": "Kevin Backhouse discovered that APT incorrectly handled certain packages.\nA local attacker could possibly use this issue to cause APT to crash or\nstop responding, resulting in a denial of service.\n",
  "id": "USN-4667-1",
  "modified": "2026-04-22T07:36:58Z",
  "published": "2020-12-09T16:30:18Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4667-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-27350"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "apt vulnerability",
  "upstream": [
    "UBUNTU-CVE-2020-27350"
  ]
}



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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

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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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