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Debian dsa-5800 : xnest - security update

high Nessus Plugin ID 209888

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Synopsis

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

Description

The remote Debian 12 host has packages installed that are affected by a vulnerability as referenced in the dsa-5800 advisory.

 - ------------------------------------------------------------------------- Debian Security Advisory DSA-5800-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso October 29, 2024 https://www.debian.org/security/faq
 - -------------------------------------------------------------------------

 Package : xorg-server CVE ID : CVE-2024-9632 Debian Bug : 1086244

 Jan-Niklas Sohn discovered that a heap-based buffer overflow in the
 _XkbSetCompatMap function in the X Keyboard Extension of the X.org X server may result in privilege escalation if the X server is running privileged.

 For the stable distribution (bookworm), this problem has been fixed in version 2:21.1.7-3+deb12u8.

 We recommend that you upgrade your xorg-server packages.

 For the detailed security status of xorg-server please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/xorg-server

 Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

 Mailing list: [email protected]

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 xnest packages.

See Also

https://security-tracker.debian.org/tracker/source-package/xorg-server

https://security-tracker.debian.org/tracker/CVE-2024-9632

https://packages.debian.org/source/bookworm/xorg-server

Plugin Details

Severity: High

ID: 209888

File Name: debian_DSA-5800.nasl

Version: 1.2

Type: local

Agent: unix

Published: 10/29/2024

Updated: 10/31/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

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

CVSS Score Source: CVE-2024-9632

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:xnest, p-cpe:/a:debian:debian_linux:xserver-xorg-core, p-cpe:/a:debian:debian_linux:xserver-xorg-core-udeb, p-cpe:/a:debian:debian_linux:xserver-common, p-cpe:/a:debian:debian_linux:xvfb, p-cpe:/a:debian:debian_linux:xserver-xephyr, p-cpe:/a:debian:debian_linux:xserver-xorg-dev, p-cpe:/a:debian:debian_linux:xorg-server-source, cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:xserver-xorg-legacy

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/29/2024

Vulnerability Publication Date: 10/29/2024

Reference Information

CVE: CVE-2024-9632