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Debian DSA-5255-1 : libksba - security update

critical Nessus Plugin ID 166175

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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-5255 advisory.

 - A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment. (CVE-2022-3515)

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+deb11u1.

See Also

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=1021928

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

https://www.debian.org/security/2022/dsa-5255

https://security-tracker.debian.org/tracker/CVE-2022-3515

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

Plugin Details

Severity: Critical

ID: 166175

File Name: debian_DSA-5255.nasl

Version: 1.6

Type: local

Agent: unix

Published: 10/17/2022

Updated: 10/9/2023

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.8

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

CVSS Score Source: CVE-2022-3515

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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:P/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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/17/2022

Vulnerability Publication Date: 10/17/2022

Reference Information

CVE: CVE-2022-3515

IAVA: 2023-A-0072