CVE-2024-24577
libgit2 - security update
Description
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.
How to fix CVE-2024-24577
To remediate CVE-2024-24577, upgrade the affected package to a fixed version below.
- —upgrade to 1.1.0+dfsg.1-4+deb11u2 or later
- —upgrade to 0.27.7+dfsg.1-0.2+deb10u2 or later
- —upgrade to 1.1.0+dfsg.1-4+deb11u2 or later
Is CVE-2024-24577 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (3)
- from 0, < 1.1.0+dfsg.1-4+deb11u2
- from 0, < 0.27.7+dfsg.1-0.2+deb10u2
- from 0, < 1.1.0+dfsg.1-4+deb11u2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |