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CVE-2024-24577

Published: 6 February 2024

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.

Priority

Medium

Cvss 3 Severity Score

9.8

Score breakdown

Status

Package Release Status
libgit2
Launchpad, Ubuntu, Debian
bionic
Released (0.26.0+dfsg.1-1.1ubuntu0.2+esm1)
Available with Ubuntu Pro
focal
Released (0.28.4+dfsg.1-2ubuntu0.1)
jammy
Released (1.1.0+dfsg.1-4.1ubuntu0.1)
mantic
Released (1.5.1+ds-1ubuntu1.1)
trusty Needed

upstream Needs triage

xenial
Released (0.24.1-2ubuntu0.2+esm2)
Available with Ubuntu Pro

Severity score breakdown

Parameter Value
Base score 9.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H