ubuntu-cve-2020-12279
Vulnerability from osv_ubuntu
Published
2020-04-27 17:15
Modified
2026-04-22 07:39
Summary
Details

An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. checkout.c mishandles equivalent filenames that exist because of NTFS short names. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1353.

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

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libgit2-0",
            "binary_version": "0.19.0-2ubuntu0.4+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@0.19.0-2ubuntu0.4+esm1?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.19.0-2",
        "0.19.0-2ubuntu0.4",
        "0.19.0-2ubuntu0.4+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libgit2-24",
            "binary_version": "0.24.1-2ubuntu0.2+esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:16.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@0.24.1-2ubuntu0.2+esm2?arch=source\u0026distro=esm-apps/xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.24.1-2ubuntu0.2+esm2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.22.2-2",
        "0.23.1-1",
        "0.24.1-2",
        "0.24.1-2ubuntu0.2",
        "0.24.1-2ubuntu0.2+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "libgit2-26",
            "binary_version": "0.26.0+dfsg.1-1.1ubuntu0.2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@0.26.0+dfsg.1-1.1ubuntu0.2+esm1?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.26.0+dfsg.1-1.1ubuntu0.2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.25.1+really0.24.6-1",
        "0.26.0+dfsg.1-1.1",
        "0.26.0+dfsg.1-1.1build1",
        "0.26.0+dfsg.1-1.1ubuntu0.2"
      ]
    }
  ],
  "aliases": [],
  "details": "An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. checkout.c mishandles equivalent filenames that exist because of NTFS short names. This may allow remote code execution when cloning a repository. This issue is similar to CVE-2019-1353.",
  "id": "UBUNTU-CVE-2020-12279",
  "modified": "2026-04-22T07:39:23Z",
  "published": "2020-04-27T17:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-12279"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/git/git/security/advisories/GHSA-589j-mmg9-733v"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/libgit2/libgit2/releases/tag/v0.28.4"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/libgit2/libgit2/releases/tag/v0.99.0"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6678-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-12279"
    }
  ],
  "related": [
    "USN-6678-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-12279"
  ]
}



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