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.
References (9)
Core 9
Core References
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/4M3P7WIEPXNRLBINQRJFXUSTNKBCHYC7/
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/7CNDW3PF6NHO7OXNM5GN6WSSGAMA7MZE/
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/S635BGHHZUMRPI7QOXOJ45QHDD5FFZ3S/
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/Z6MXOX7I43OWNN7R6M54XLG6U5RXY244/
Mailing List, Third Party Advisory
https://lists.fedoraproject.org/archives/list/[email protected]/message/ZGNHOEE2RBLH7KCJUPUNYG4CDTW4HTBT/
Third Party Advisory x_refsource_confirm
https://github.com/libgit2/libgit2/security/advisories/GHSA-j2v7-4f6v-gpg8
Release Notes x_refsource_misc
https://github.com/libgit2/libgit2/releases/tag/v1.6.5
Release Notes x_refsource_misc
https://github.com/libgit2/libgit2/releases/tag/v1.7.2
Scores
CVSS v3
8.6
EPSS
0.0038
EPSS Percentile
59.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:L
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
yes
Technical Impact
partial
Details
CWE
CWE-119
CWE-122
Status
published
Products (1)
libgit2/libgit2
< 1.6.5
Published
Feb 06, 2024
Tracked Since
Feb 18, 2026