ubuntu-cve-2020-28948
Vulnerability from osv_ubuntu
Published
2020-11-19 19:15
Modified
2025-07-16 04:56
Summary
Details

Archive_Tar through 1.4.10 allows an unserialization attack because phar: is blocked but PHAR: is not blocked.

Severity
7.8 (High)
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/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": "drupal7",
            "binary_version": "7.26-1ubuntu0.1+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "drupal7",
        "purl": "pkg:deb/ubuntu/drupal7@7.26-1ubuntu0.1+esm2?arch=source\u0026distro=trusty/esm"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.26-1ubuntu0.1+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.23-1",
        "7.24-1",
        "7.24-2",
        "7.26-1",
        "7.26-1ubuntu0.1",
        "7.26-1ubuntu0.1+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "php-pear",
            "binary_version": "1:1.10.1+submodules+notgz-6ubuntu0.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "php-pear",
        "purl": "pkg:deb/ubuntu/php-pear@1:1.10.1+submodules+notgz-6ubuntu0.2?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.10.1+submodules+notgz-6ubuntu0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.10.1+submodules+notgz-4",
        "1:1.10.1+submodules+notgz-6",
        "1:1.10.1+submodules+notgz-6ubuntu0.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "drupal7",
            "binary_version": "7.44-1ubuntu1~16.04.0+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "drupal7",
        "purl": "pkg:deb/ubuntu/drupal7@7.44-1ubuntu1~16.04.0+esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "7.44-1ubuntu1~16.04.0+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "7.38-1",
        "7.41-1",
        "7.44-1ubuntu1~16.04.0",
        "7.44-1ubuntu1~16.04.0+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "php-pear",
            "binary_version": "1:1.10.5+submodules+notgz-1ubuntu1.18.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:18.04:LTS",
        "name": "php-pear",
        "purl": "pkg:deb/ubuntu/php-pear@1:1.10.5+submodules+notgz-1ubuntu1.18.04.2?arch=source\u0026distro=bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.10.5+submodules+notgz-1ubuntu1.18.04.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.10.5+submodules+notgz-1",
        "1:1.10.5+submodules+notgz-1ubuntu1",
        "1:1.10.5+submodules+notgz-1ubuntu1.18.04.1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "php-pear",
            "binary_version": "1:1.10.9+submodules+notgz-1ubuntu0.20.04.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "php-pear",
        "purl": "pkg:deb/ubuntu/php-pear@1:1.10.9+submodules+notgz-1ubuntu0.20.04.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1:1.10.9+submodules+notgz-1ubuntu0.20.04.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1:1.10.9+submodules+notgz-1"
      ]
    }
  ],
  "aliases": [],
  "details": "Archive_Tar through 1.4.10 allows an unserialization attack because phar: is blocked but PHAR: is not blocked.",
  "id": "UBUNTU-CVE-2020-28948",
  "modified": "2025-07-16T04:56:18Z",
  "published": "2020-11-19T19:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-28948"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-4654-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-28948"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6981-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6981-2"
    }
  ],
  "related": [
    "USN-4654-1",
    "USN-6981-1",
    "USN-6981-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-28948"
  ]
}



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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 patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.