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

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)
	noble	Not vulnerable
	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

References

Join the discussion

Canonical is offering Expanded Security Maintenance

Canonical is offering Ubuntu Expanded Security Maintenance (ESM) for security fixes and essential packages.

Find out more about ESM ›