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Debian DSA-5305-1 : libksba - security update

critical Nessus Plugin ID 169280

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dsa-5305 advisory.

 An integer overflow flaw was discovered in the CRL signature parser in libksba, an X.509 and CMS support library, which could result in denial of service or the execution of arbitrary code. For the stable distribution (bullseye), this problem has been fixed in version 1.5.0-3+deb11u2. We recommend that you upgrade your libksba packages. For the detailed security status of libksba please refer to its security tracker page at: https://security-tracker.debian.org/tracker/libksba

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the libksba packages.

For the stable distribution (bullseye), this problem has been fixed in version 1.5.0-3+deb11u2.

See Also

https://security-tracker.debian.org/tracker/source-package/libksba

https://www.debian.org/security/2022/dsa-5305

https://security-tracker.debian.org/tracker/CVE-2022-47629

https://packages.debian.org/source/bullseye/libksba

Plugin Details

Severity: Critical

ID: 169280

File Name: debian_DSA-5305.nasl

Version: 1.3

Type: local

Agent: unix

Published: 12/23/2022

Updated: 1/24/2025

Supported Sensors: Agentless Assessment, Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

CVSS Score Source: CVE-2022-47629

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libksba8, p-cpe:/a:debian:debian_linux:libksba-dev, p-cpe:/a:debian:debian_linux:libksba-mingw-w64-dev

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 12/21/2022

Vulnerability Publication Date: 12/20/2022

Reference Information

CVE: CVE-2022-47629

IAVA: 2023-A-0072