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TI-2024-16196 Aliases CVE-2024-24575

libgit2 is vulnerable to a denial of service attack in `git_revparse_single`

Priority LOW 36CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-400.

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_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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01443 73rd percentileScored 2026-11-07
Fix Fixed libgit2 (libgit2): 1.6.5, 1.7.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
libgit2libgit21.4.0 to before 1.6.5; 1.7.0 to before 1.7.21.6.5, 1.7.2Patch availableCNA
  • libgit2 Vendorlibgit2 Affected 1.4.0 to before 1.6.5; 1.7.0 to before 1.7.2 Fixed in 1.6.5, 1.7.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:*1.4.0 to before 1.6.5; 1.7.0 to before 1.7.2Vulnerablelibgit2
  • cpe:2.3:a:libgit2:libgit2:*:*:*:*:*:*:*:* Versions 1.4.0 to before 1.6.5; 1.7.0 to before 1.7.2 Vulnerable ·libgit2

Remediation

  • Fix · CNA libgit2 (libgit2) Fixed in 1.6.5, 1.7.2

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

Not affected: 3 products
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-24575

References

Patch 1

Advisory 1

Other 7

  • TI-2014-07619 Git before 1.8.5.6, 1.9.x before 1.9.5, 2.0.x before 2.0.5, 2.1.x before 2.1.4, and 2.2.x… CVSS 3.1CRITICAL 9.8
  • TI-2024-16198 libgit2 is vulnerable to arbitrary code execution due to heap corruption in `git_index_add` CVSS 3.1CRITICAL 9.8
  • TI-2020-09811 An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. CVSS 3.1CRITICAL 9.8
  • TI-2020-09810 An issue was discovered in libgit2 before 0.28.4 and 0.9x before 0.99.0. CVSS 3.1CRITICAL 9.8
  • TI-2018-11055 In ng_pkt in transports/smart_pkt.c in libgit2 before 0.26.6 and 0.27.x before 0.27.4, a… CVSS 3.1HIGH 7.5
  • TI-2018-07700 Out-of-bounds read in libgit2 CVSS 3.1HIGH 8.1
See all 10 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences