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

CVE-2022-47629

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

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

CRITICAL · CVSS 9.8 EPSS 0.0146
Schedule remediation
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-190Integer Overflow or Wraparound
CWE-190Integer Overflow or Wraparound
▤

Affected Products & Versions

2
gnupg libksba< 1.6.3
debian linuxall versions
▣

Scoring & Timeline

9.8
CRITICAL · CVSS v3.1 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD20 Dec 2022 · 11:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
⚑

Vendor Advisories

23
suse-csafopenSUSE-SU-2024:12595-1
siemens-csafSSA-455250
siemens-csafSSA-806742
suse-csafSUSE-SU-2023:0056-2
suse-csafSUSE-SU-2023:0031-2
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://dev.gnupg.org/T6284PatchThird Party Advisory
https://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git
https://lists.debian.org/debian-lts-announce/2022/12/msg00035.htmlMailing ListThird Party Advisory
https://security.gentoo.org/glsa/202212-07Third Party Advisory
https://security.netapp.com/advisory/ntap-20230316-0011/
https://www.debian.org/security/2022/dsa-5305Third Party Advisory
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