NA

CVE-2024-24577

Published: 06/02/2024 Updated: 27/02/2024
CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9
VMScore: 0

Vulnerability Summary

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_revparse_single` can cause the function to enter an infinite loop, potentially causing a Denial of Service attack in the calling application. The revparse function in `src/libgit2/revparse.c` uses a loop to parse the user-provided spec string. There is an edge-case during parsing that allows a bad actor to force the loop conditions to access arbitrary memory. Potentially, this could also leak memory if the extracted rev spec is reflected back to the attacker. As such, libgit2 versions prior to 1.4.0 are not affected. Users should upgrade to version 1.6.5 or 1.7.2. (CVE-2024-24575) 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. (CVE-2024-24577)

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Vendor Advisories

Debian Bug report logs - #1063415 libgit2: CVE-2024-24575: Denial of service attack in `git_revparse_single` Package: src:libgit2; Maintainer for src:libgit2 is Utkarsh Gupta <utkarsh@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Wed, 7 Feb 2024 21:27:02 UTC Severity: important Tags: secur ...
Debian Bug report logs - #1063416 libgit2: CVE-2024-24577: Arbitrary code execution due to heap corruption in `git_index_add` Package: src:libgit2; Maintainer for src:libgit2 is Utkarsh Gupta <utkarsh@debianorg>; Reported by: Salvatore Bonaccorso <carnil@debianorg> Date: Wed, 7 Feb 2024 21:27:13 UTC Severity: grav ...
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_revparse_single` can cause the function to enter an infinite loop, potentially causing a Denial of Service attack in the calling application The ...