CVE catalog

CVE-2016-4574

libksba: CVE-2016-4574

Severity: High · CVSS 7.5CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Published: May 13, 2016, 12:00:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 2.76% · Oct 25, 2026

Off-by-one error in the append_utf8_value function in the DN decoder (dn.c) in Libksba before 1.3.4 allows remote attackers to cause a denial of service (out-of-bounds read) via invalid utf-8 encoded data. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-4356.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	libksba	sid	`1.8.1-1`	fixed
Debian	libksba	forky	`1.8.1-1`	fixed
Debian	libksba	trixie	`1.6.7-2`	fixed
Debian	libksba	bookworm	`1.6.3-2`	fixed
Ubuntu	libksba	14.04	`1.3.0-2`	vulnerable
Ubuntu	libksba	14.04	`1.3.0-2ubuntu1`	vulnerable
Ubuntu	libksba	14.04	`1.3.0-3`	vulnerable
Ubuntu	libksba	14.04	`1.3.0-3ubuntu0.14.04.1`	vulnerable
Ubuntu	libksba	14.04	`1.3.0-3ubuntu0.14.04.2`	fixed
Ubuntu	libksba	16.04	`1.3.3-1`	vulnerable
Ubuntu	libksba	16.04	`1.3.3-1ubuntu0.16.04.1`	fixed
Suse	libksba	linux enterprise desktop 12	`1.3.0-23.1`	fixed
Suse	libksba	linux enterprise desktop 12 sp1	`1.3.0-23.1`	fixed
Suse	libksba	linux enterprise software development kit 12	`1.3.0-23.1`	fixed
Suse	libksba	linux enterprise software development kit 12 sp1	`1.3.0-23.1`	fixed
Suse	libksba	linux enterprise server 12	`1.3.0-23.1`	fixed
Suse	libksba	linux enterprise server for sap applications 12	`1.3.0-23.1`	fixed
Suse	libksba	linux enterprise server 12 sp1	`1.3.0-23.1`	fixed
Suse	libksba	linux enterprise server for sap applications 12 sp1	`1.3.0-23.1`	fixed
Suse	libksba	linux enterprise software development kit 11 sp4	`1.0.4-1.25.1`	fixed
Suse	libksba	linux enterprise server 11 sp4	`1.0.4-1.25.1`	fixed
Suse	libksba	linux enterprise server for sap applications 11 sp4	`1.0.4-1.25.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	libksba	source	sid	`1.3.4-3`	not yet assigned	Not reported	Not reported
Debian	libksba	source	forky	`1.3.4-3`	not yet assigned	Not reported	Not reported
Debian	libksba	source	trixie	`1.3.4-3`	not yet assigned	Not reported	Not reported
Debian	libksba	source	bookworm	`1.3.4-3`	not yet assigned	Not reported	Not reported
Ubuntu	libksba	deb	14.04	`1.3.0-3ubuntu0.14.04.2`	Not reported	UBUNTU-CVE-2016-4574	Not reported
Ubuntu	libksba	deb	16.04	`1.3.3-1ubuntu0.16.04.1`	Not reported	UBUNTU-CVE-2016-4574	Not reported
Suse	libksba	rpm	linux enterprise desktop 12	`1.3.0-23.1`	Not reported	SUSE-SU-2016:1510-1	Not reported
Suse	libksba	rpm	linux enterprise desktop 12 sp1	`1.3.0-23.1`	Not reported	SUSE-SU-2016:1510-1	Not reported
Suse	libksba	rpm	linux enterprise software development kit 12	`1.3.0-23.1`	Not reported	SUSE-SU-2016:1510-1	Not reported
Suse	libksba	rpm	linux enterprise software development kit 12 sp1	`1.3.0-23.1`	Not reported	SUSE-SU-2016:1510-1	Not reported
Suse	libksba	rpm	linux enterprise server 12	`1.3.0-23.1`	Not reported	SUSE-SU-2016:1510-1	Not reported
Suse	libksba	rpm	linux enterprise server for sap applications 12	`1.3.0-23.1`	Not reported	SUSE-SU-2016:1510-1	Not reported
Suse	libksba	rpm	linux enterprise server 12 sp1	`1.3.0-23.1`	Not reported	SUSE-SU-2016:1510-1	Not reported
Suse	libksba	rpm	linux enterprise server for sap applications 12 sp1	`1.3.0-23.1`	Not reported	SUSE-SU-2016:1510-1	Not reported
Suse	libksba	rpm	linux enterprise software development kit 11 sp4	`1.0.4-1.25.1`	Not reported	SUSE-SU-2016:1509-1	Not reported
Suse	libksba	rpm	linux enterprise server 11 sp4	`1.0.4-1.25.1`	Not reported	SUSE-SU-2016:1509-1	Not reported
Suse	libksba	rpm	linux enterprise server for sap applications 11 sp4	`1.0.4-1.25.1`	Not reported	SUSE-SU-2016:1509-1	Not reported

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libksba8]Fixed
Source package: [libksba]
Details (2)
- 1.6.3-2 · amd64 · bookworm
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · bookworm; dsa · libksba · debian · 12
- 1.6.3-2 · arm64 · bookworm
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · bookworm; dsa · libksba · debian · 12
[libksba-dev]Fixed
Source package: [libksba]
Details (2)
- 1.6.3-2 · amd64 · bookworm
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · bookworm; dsa · libksba · debian · 12
- 1.6.3-2 · arm64 · bookworm
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · bookworm; dsa · libksba · debian · 12
[libksba-mingw-w64-dev]Fixed
Source package: [libksba]
Details (2)
- 1.6.3-2 · all · bookworm
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · bookworm; dsa · libksba · debian · 12
- 1.6.3-2 · all · bookworm
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · bookworm; dsa · libksba · debian · 12

[Debian 13 (Trixie)]

[libksba8]Fixed
Source package: [libksba]
Details (2)
- 1.6.7-2+b1 · amd64 · trixie
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · 13
- 1.6.7-2+b1 · arm64 · trixie
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · 13
[libksba-dev]Fixed
Source package: [libksba]
Details (2)
- 1.6.7-2+b1 · amd64 · trixie
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · 13
- 1.6.7-2+b1 · arm64 · trixie
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · 13
[libksba-mingw-w64-dev]Fixed
Source package: [libksba]
Details (2)
- 1.6.7-2 · all · trixie
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · 13
- 1.6.7-2 · all · trixie
  Fixed · Fixed: 1.3.4-3
  dsa · libksba · debian · 13

Observed: Oct 23, 2026, 5:21:41 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]