Integer overflow in Gnupg Libksba

CVE-2022-47629

Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.

Vulnerability class: Integer Overflow

EPSS: 0.015 (72.5th 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

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2022-47629?
CVE-2022-47629 is a critical-severity vulnerability in Gnupg Libksba, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2022-12-20.
How severe is CVE-2022-47629?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-47629 known to be exploited?
3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.