CVE-2022-47629
Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.
02 Description
Libksba before 1.6.3 is prone to an integer overflow vulnerability in the CRL signature parser.
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 1.67% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 76.5% of scored records. A rank, not a probability.
- NVD base score
- 9.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2022-12-20 00:00Z3 YR AGO
- Last updated
- 2025-04-16 17:35Z1 YR AGO
- Reserved
- 2022-12-20
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Critical (CVSS 9.8)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- CWE-190Integer Overflow or WraparoundBase
- Data version
- 5.1
- Document digest
- eb2293d1a0a531d8171d8f95ca700132d035ba26c4b927498e2654e30f8b470d
05 Affected products
06 References
- git.gnupg.orghttps://git.gnupg.org/cgi-bin/gitweb.cgi?p=libksba.git%3Ba=commit%3Bh=f61a5ea4e0f6a80fd4b28ef0174bee77793cf070
- dev.gnupg.orghttps://dev.gnupg.org/T6284
- www.debian.orgDSA-5305https://www.debian.org/security/2022/dsa-5305
- lists.debian.org[debian-lts-announce] 20221224 [SECURITY] [DLA 3248-1] libksba security updatehttps://lists.debian.org/debian-lts-announce/2022/12/msg00035.html
- security.gentoo.orgGLSA-202212-07https://security.gentoo.org/glsa/202212-07
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20230316-0011/
07 Fixed in
AlmaLinux 8
- libksba Fixed in 1.3.5-9.el8_7
- libksba-devel Fixed in 1.3.5-9.el8_7
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- libksba Fixed in 1.5.1-6.el9_1
- libksba-devel Fixed in 1.5.1-6.el9_1
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Arch Linux
- libksba Fixed in 1.6.3-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
CloudLinux 8
- libksba Fixed in 1.3.5-9.el8_7
- libksba-devel Fixed in 1.3.5-9.el8_7
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- libksba Fixed in 1.5.1-6.el9_1
- libksba-devel Fixed in 1.5.1-6.el9_1
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- libksba Fixed in 1.6.3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- libksba Fixed in 1.6.3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- libksba Fixed in 1.6.3-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- libksba Fixed in 1.3.5-2ubuntu0.18.04.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- libksba Fixed in 1.3.5-2ubuntu0.20.04.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- libksba Fixed in 1.6.0-2ubuntu0.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- libksba Fixed in 1.3.0-3ubuntu0.14.04.2+esm2Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- libksba Fixed in 1.3.3-1ubuntu0.16.04.1+esm2Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.