What is CVE-2022-23521?

CVE-2022-23521 is a critical-severity vulnerability in Git, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2023-01-17.

How severe is CVE-2022-23521?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-23521 known to be exploited?

18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Integer overflow in Git

CVE-2022-23521

Git is distributed revision control system. gitattributes are a mechanism to allow defining attributes for paths. These attributes can be defined by adding a `.gitattributes` file to the repository, which contains a set of file patterns an…

Vulnerability class: Integer Overflow

EPSS: 0.563 (98.9th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Git — versions < 2.30.7, >= 2.31.0, < 2.31.6, >= 2.32.0, < 2.32.5

Weakness classification (CWE)

CWE-190 — Integer Overflow or Wraparound

Public proof-of-concept exploits

References

https://github.com/git/git/security/advisories/GHSA-c738-c5qq-xg89 (x_refsource_CONFIRM)
https://github.com/git/git/commit/508386c6c5857b4faa2c3e491f422c98cc69ae76 (x_refsource_MISC)
security.gentoo.org/glsa/202312-15

Frequently asked questions

What is CVE-2022-23521?: CVE-2022-23521 is a critical-severity vulnerability in Git, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2023-01-17.
How severe is CVE-2022-23521?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-23521 known to be exploited?: 18 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.