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Fencer Vulns
high 8.6

CVE-2024-24577 json

libgit2 is vulnerable to arbitrary code execution due to heap corruption in `git_index_add`

published 2024-02-06 2 y ago modified 2026-07-18 3 mo ago also EUVD-2024-21982 , JLSEC-2025-186

cvss
8.6
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.5%
EPSS 1.5% chance of exploitation in 30 days, percentile 75%
public exploits
0
none known

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_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.

Patch / fix

  • julia LibGit2_jll 1.7.2+0
  • libgit2 libgit2 1.6.5, 1.7.2
  • libgit2 Debian 12 1.5.1+ds-1+deb12u1
  • libgit2 Debian 14, Debian 13 1.7.2+ds-1

debian advisories DEBIAN-CVE-2024-24577

  • libgit2 Ubuntu 20.04 LTS 0.28.4+dfsg.1-2ubuntu0.1
  • libgit2 Ubuntu 22.04 LTS 1.1.0+dfsg.1-4.1ubuntu0.1
  • libgit2 Ubuntu Pro 16.04 LTS 0.24.1-2ubuntu0.2+esm2
  • libgit2 Ubuntu Pro 18.04 LTS 0.26.0+dfsg.1-1.1ubuntu0.2+esm1

ubuntu advisories UBUNTU-CVE-2024-24577

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • git Linux Micro 6.0 2.51.0-1.1
  • git SLES for SAP 15 SP4, SLES for SAP 15 SP3, SLES 15 SP4-LTSS +12 more 2.35.3-150300.10.42.1
  • libgit2 SLES for SAP 15 SP4, SLES 15 SP4-LTSS, SLE Module for Development Tools 15 SP5 +3 more 1.3.0-150400.3.9.1
  • libgit2 SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +5 more 0.28.4-150200.3.9.1
  • git SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 2.26.2-27.75.1
  • libgit2 SLE Module for Development Tools 15 SP6, openSUSE Leap 15.6 1.7.2-150600.3.3.1
  • libgit2 SLE Software Development Kit 12 SP5 0.24.1-11.5.1
  • git SLE Module for Development Tools 15 SP6, SLE Module for Basesystem 15 SP6, openSUSE Leap 15.6 2.43.0-150600.3.6.1

suse advisories SUSE-SU-2025:20721-1SUSE-SU-2024:2656-1SUSE-SU-2024:2619-1SUSE-SU-2024:2610-1SUSE-SU-2024:2599-1SUSE-SU-2024:2598-1

  • git openSUSE Tumbleweed 2.45.2-2.1
  • libgit2 openSUSE Tumbleweed 1.7.2-1.1

opensuse advisories openSUSE-SU-2024:14212-1openSUSE-SU-2024:13661-1

  • eza Alpine 3.24, Alpine 3.23, Alpine 3.22 +2 more 0.18.2-r0
  • libgit2 Alpine 3.24, Alpine 3.23, Alpine 3.22 +3 more 1.7.2-r0

alpine advisories ALPINE-CVE-2024-24577

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libgit2 CBL-Mariner 2.0 1.6.5-1

azure linux advisories AZL-34274

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2024-24577 updated cvss 9.8

libgit2: arbitrary code execution due to heap corruption in git_index_add

  • Red Hat Enterprise Linux 7 libgit2 Red Hat Enterprise Linux 8 rls, rust, cargo, clippy, libgit2, rustfmt, +9 more Red Hat Enterprise Linux 9 rust, cargo, clippy, rustfmt, rust-gdb, rust-src, +8 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

1.55% chance of exploitation in the next 30 days, higher than 75% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
julia LibGit2_jll
<1.7.2+0
1.7.2+0

Affected products

  • libgit2 libgit2

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.