ubuntu-cve-2024-24577
Vulnerability from osv_ubuntu
Published
2024-02-06 22:16
Modified
2026-04-22 07:48
Summary
Details

libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Using well-crafted inputs to git_index_add can cause heap corruption that could be leveraged for arbitrary code execution. There is an issue in the has_dir_name function in src/libgit2/index.c, which frees an entry that should not be freed. The freed entry is later used and overwritten with potentially bad actor-controlled data leading to controlled heap corruption. Depending on the application that uses libgit2, this could lead to arbitrary code execution. This issue has been patched in version 1.6.5 and 1.7.2.

Severity
8.6 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
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"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgit2-28",
            "binary_version": "0.28.4+dfsg.1-2ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@0.28.4+dfsg.1-2ubuntu0.1?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.28.4+dfsg.1-2ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.27.7+dfsg.1-0.2build1",
        "0.28.3+dfsg.1-1",
        "0.28.3+dfsg.1-1ubuntu1",
        "0.28.4+dfsg.1-2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libgit2-1.1",
            "binary_version": "1.1.0+dfsg.1-4.1ubuntu0.1"
          },
          {
            "binary_name": "libgit2-fixtures",
            "binary_version": "1.1.0+dfsg.1-4.1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libgit2",
        "purl": "pkg:deb/ubuntu/libgit2@1.1.0+dfsg.1-4.1ubuntu0.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.1.0+dfsg.1-4.1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.1.0+dfsg.1-4",
        "1.1.0+dfsg.1-4.1",
        "1.1.0+dfsg.1-4.1build1"
      ]
    }
  ],
  "aliases": [],
  "details": "libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Using well-crafted inputs to `git_index_add` can cause heap corruption that could be leveraged for arbitrary code execution. There is an issue in the `has_dir_name` function in `src/libgit2/index.c`, which frees an entry that should not be freed. The freed entry is later used and overwritten with potentially bad actor-controlled data leading to controlled heap corruption. Depending on the application that uses libgit2, this could lead to arbitrary code execution. This issue has been patched in version 1.6.5 and 1.7.2.",
  "id": "UBUNTU-CVE-2024-24577",
  "modified": "2026-04-22T07:48:00Z",
  "published": "2024-02-06T22:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-24577"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/libgit2/libgit2/security/advisories/GHSA-j2v7-4f6v-gpg8"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/libgit2/libgit2/releases/tag/v1.6.5"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/libgit2/libgit2/releases/tag/v1.7.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6678-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-24577"
    }
  ],
  "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:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "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-2024-24577"
  ]
}



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  • 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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