PT-2025-45976 · Julia · Libgit2 Jll

Published 2025-10-21 · Updated 2025-10-21

OSV

CVSS v3.1

7.5

High

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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 revparse single can cause the function to enter an infinite loop, potentially causing a Denial of Service attack in the calling application. The revparse function in src/libgit2/revparse.c uses a loop to parse the user-provided spec string. There is an edge-case during parsing that allows a bad actor to force the loop conditions to access arbitrary memory. Potentially, this could also leak memory if the extracted rev spec is reflected back to the attacker. As such, libgit2 versions before 1.4.0 are not affected. Users should upgrade to version 1.6.5 or 1.7.2.

Fix

Related Identifiers

JLSEC-2025-185

Affected Products

Libgit2 Jll

References · 10

• https://lists.fedoraproject.org/archives/list/[e-mail]/message/4M3P7WIEPXNRLBINQRJFXUSTNKBCHYC7 · Vendor Advisory
• https://osv.dev/vulnerability/JLSEC-2025-185 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/S635BGHHZUMRPI7QOXOJ45QHDD5FFZ3S · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/Z6MXOX7I43OWNN7R6M54XLG6U5RXY244 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/ZGNHOEE2RBLH7KCJUPUNYG4CDTW4HTBT · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/[e-mail]/message/7CNDW3PF6NHO7OXNM5GN6WSSGAMA7MZE · Vendor Advisory
• https://github.com/libgit2/libgit2/commit/add2dabb3c16aa49b33904dcdc07cd915efc12fa · Note
• https://github.com/libgit2/libgit2/security/advisories/GHSA-54mf-x2rh-hq9v · Note
• https://github.com/libgit2/libgit2/releases/tag/v1.7.2 · Note
• https://github.com/libgit2/libgit2/releases/tag/v1.6.5 · Note