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Fencer Vulns
critical 9.8

CVE-2022-47629 json

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

published 2022-12-20 3 y ago modified 2026-07-18 3 mo ago also EUVD-2022-50389 , JLSEC-2026-57

cvss
9.8
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.7%
EPSS 1.7% chance of exploitation in 30 days, percentile 77%
public exploits
0
none known

Summary

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

Patch / fix

  • julia Libksba_jll 1.6.7+0
  • gnupg libksba 1.6.3
  • libksba Debian 14, Debian 13, Debian 12 1.6.3-1

debian advisories DEBIAN-CVE-2022-47629

  • libksba Ubuntu 18.04 LTS 1.3.5-2ubuntu0.18.04.2
  • libksba Ubuntu 20.04 LTS 1.3.5-2ubuntu0.20.04.2
  • libksba Ubuntu 22.04 LTS 1.6.0-2ubuntu0.2
  • libksba Ubuntu Pro 14.04 LTS 1.3.0-3ubuntu0.14.04.2+esm2
  • libksba Ubuntu Pro 16.04 LTS 1.3.3-1ubuntu0.16.04.1+esm2

ubuntu advisories UBUNTU-CVE-2022-47629

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • redhat-virtualization-host rhev hypervisor 4.4 4.5.3-202302150956_8.6
  • redhat-virtualization-host-image-update rhev hypervisor 4.4 4.5.3-202302150956_8.6
  • libksba RHEL 8 1.3.5-9.el8_7
  • libksba RHEL 9 1.5.1-6.el9_1
  • libksba RHEL 7 1.3.0-7.el7_9
  • libksba RHEL 8.4 EUS 1.3.5-9.el8_4
  • libksba RHEL 9.0 EUS 1.5.1-6.el9_0
  • libksba RHEL 8.6 EUS 1.3.5-9.el8_6

red hat advisories RHSA-2023:0859RHSA-2023:0625RHSA-2023:0624RHSA-2023:0626RHSA-2023:0629RHSA-2023:0594

  • libksba SLE Real Time 15 SP3, SLE Module for Basesystem 15 SP4, SLE Micro 5.3 +21 more 1.3.5-150000.4.6.1
  • libksba SLES 12 SP5, SLES 12 SP2-BCL, SLE Software Development Kit 12 SP5 +5 more 1.3.0-24.6.1

suse advisories SUSE-SU-2023:0056-2SUSE-SU-2023:0031-2SUSE-SU-2023:0056-1SUSE-SU-2023:0031-1

  • libksba openSUSE Tumbleweed 1.6.3-1.1

opensuse advisories openSUSE-SU-2024:12595-1

  • libksba AlmaLinux 8 1.3.5-9.el8_7
  • libksba AlmaLinux 9 1.5.1-6.el9_1

almalinux advisories ALSA-2023:0625ALSA-2023:0626

  • libksba Rocky Linux 9 1.5.1-6.el9_1
  • libksba Rocky Linux 8 1.3.5-9.el8_7

rocky linux advisories RLSA-2023:0626RLSA-2023:0625

  • libksba Alpine 3.14 1.5.1-r1
  • libksba Alpine 3.24, Alpine 3.23, Alpine 3.22 +7 more 1.6.3-r0

alpine advisories ALPINE-CVE-2022-47629

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • libksba CBL-Mariner 2.0 1.6.3-1

azure linux advisories AZL-12104

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

  • libksba Arch Linux 1.6.3-1

arch linux advisories AVG-2804

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-47629 updated cvss 8.6

libksba: integer overflow to code execution

  • Red Hat Enterprise Linux 6 libksba
    affected: no fix planned “Out of support scope”
  • Red Hat CodeReady Linux Builder (v. 8) libksba 1.3.5-9.el8_7
    fixed: vendor fix RHSA-2023:0625
  • Red Hat CodeReady Linux Builder (v. 9) libksba 1.5.1-6.el9_1
    fixed: vendor fix RHSA-2023:0626
  • Red Hat CodeReady Linux Builder EUS (v.8.6) libksba 1.3.5-9.el8_6
    fixed: vendor fix RHSA-2023:0594
  • Red Hat CodeReady Linux Builder EUS (v.9.0) libksba 1.5.1-6.el9_0
    fixed: vendor fix RHSA-2023:0629
  • Red Hat Enterprise Linux BaseOS (v. 8) libksba 1.3.5-9.el8_7
    fixed: vendor fix RHSA-2023:0625
  • Red Hat Enterprise Linux BaseOS (v. 9) libksba 1.5.1-6.el9_1
    fixed: vendor fix RHSA-2023:0626
  • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) libksba 1.3.5-9.el8_2
    fixed: vendor fix RHSA-2023:0592
show 12 more
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) libksba 1.3.5-9.el8_1
    fixed: vendor fix RHSA-2023:0593
  • Red Hat Enterprise Linux BaseOS E4S (v. 8.2) libksba 1.3.5-9.el8_2
    fixed: vendor fix RHSA-2023:0592
  • Red Hat Enterprise Linux BaseOS EUS (v.8.4) libksba 1.3.5-9.el8_4
    fixed: vendor fix RHSA-2023:0624
  • Red Hat Enterprise Linux BaseOS EUS (v.8.6) libksba 1.3.5-9.el8_6
    fixed: vendor fix RHSA-2023:0594
  • Red Hat Enterprise Linux BaseOS EUS (v.9.0) libksba 1.5.1-6.el9_0
    fixed: vendor fix RHSA-2023:0629
  • Red Hat Enterprise Linux BaseOS TUS (v. 8.2) libksba 1.3.5-9.el8_2
    fixed: vendor fix RHSA-2023:0592
  • Red Hat Enterprise Linux Client Optional (v. 7) libksba 1.3.0-7.el7_9 Red Hat Enterprise Linux ComputeNode Optional (v. 7) libksba 1.3.0-7.el7_9
    fixed: vendor fix RHSA-2023:0530
  • Red Hat Enterprise Linux CRB EUS (v.8.4) libksba 1.3.5-9.el8_4
    fixed: vendor fix RHSA-2023:0624
  • Red Hat Enterprise Linux Server Optional (v. 7) libksba 1.3.0-7.el7_9 Red Hat Enterprise Linux Workstation Optional (v. 7) libksba 1.3.0-7.el7_9
    fixed: vendor fix RHSA-2023:0530
  • Red Hat JBoss Enterprise Application Platform Expansion Pack
    fixed: vendor fix RHSA-2023:0756
  • Red Hat Virtualization 4 Hypervisor for RHEL 8 redhat-virtualization-host 4.5.3-202302150956_8.6, redhat-virtualization-host-image-update 4.5.3-202302150956_8.6
    fixed: vendor fix RHSA-2023:0859
  • Red Hat RHEL 8-based RHEV-H for RHEV 4 (build requirements) redhat-release-virtualization-host 4.5.3-4.el8ev, redhat-release-virtualization-host-content 4.5.3-4.el8ev, redhat-virtualization-host-image-update-placeholder 4.5.3-4.el8ev
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

cisa ICSA-24-102-04 updated cvss 9.8

Siemens RUGGEDCOM APE1808

  • Siemens RUGGEDCOM APE1808
    affected: vendor fix

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

cisa ICSA-24-046-11 updated cvss 9.8

Siemens SCALANCE XCM-/XRM-300

  • Siemens SCALANCE XCH328 (6GK5328-4TS01-2EC2) <V2.4 Siemens SCALANCE XCM324 (6GK5324-8TS01-2AC2) <V2.4 Siemens SCALANCE XCM328 (6GK5328-4TS01-2AC2) <V2.4 Siemens SCALANCE XCM332 (6GK5332-0GA01-2AC2) <V2.4 Siemens SCALANCE XRH334 (24 V DC, 8xFO, CC) (6GK5334-2TS01-2ER3) <V2.4 Siemens SCALANCE XRM334 (2x230 V AC, 8xFO) (6GK5334-2TS01-4AR3) <V2.4
    +5 more products
    Siemens SCALANCE XRM334 (2x230 V AC, 12xFO) (6GK5334-3TS01-4AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 8xFO) (6GK5334-2TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (24 V DC, 12xFO) (6GK5334-3TS01-2AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 8xFO) (6GK5334-2TS01-3AR3) <V2.4 Siemens SCALANCE XRM334 (230 V AC, 12xFO) (6GK5334-3TS01-3AR3) <V2.4
    affected: fixed in V2.4 support.industry.siemens.com

Facts from CISA's republication of the vendor's own advisory (CSAF); the linked advisory is the authoritative source. CISA notification · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

1.67% chance of exploitation in the next 30 days, higher than 77% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CNA 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
OSV 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
julia Libksba_jll
<1.6.7+0
1.6.7+0

Classification

Weakness
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.