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Debian dsa-5947 : xnest - security update

medium Nessus Plugin ID 240282

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Synopsis

The remote Debian host is missing one or more security-related updates.

Description

The remote Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5947 advisory.

 - ------------------------------------------------------------------------- Debian Security Advisory DSA-5947-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso June 23, 2025 https://www.debian.org/security/faq
 - -------------------------------------------------------------------------

 Package : xorg-server CVE ID : CVE-2025-49175 CVE-2025-49176 CVE-2025-49177 CVE-2025-49178 CVE-2025-49179 CVE-2025-49180

 Nils Emmerich discovered several vulnerabilities in the Xorg X server, which may result in privilege escalation if the X server is running privileged.

 For the stable distribution (bookworm), these problems have been fixed in version 2:21.1.7-3+deb12u10.

 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 these issues 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-2025-49175

https://security-tracker.debian.org/tracker/CVE-2025-49176

https://security-tracker.debian.org/tracker/CVE-2025-49177

https://security-tracker.debian.org/tracker/CVE-2025-49178

https://security-tracker.debian.org/tracker/CVE-2025-49179

https://security-tracker.debian.org/tracker/CVE-2025-49180

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

Plugin Details

Severity: Medium

ID: 240282

File Name: debian_DSA-5947.nasl

Version: 1.1

Type: local

Agent: unix

Published: 6/23/2025

Updated: 6/23/2025

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.5

CVSS v2

Risk Factor: Medium

Base Score: 5.7

Temporal Score: 4.2

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

CVSS Score Source: CVE-2025-49179

CVSS v3

Risk Factor: Medium

Base Score: 6.6

Temporal Score: 5.8

Vector: CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/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: 6/23/2025

Vulnerability Publication Date: 6/17/2025

Reference Information

CVE: CVE-2025-49175, CVE-2025-49176, CVE-2025-49177, CVE-2025-49178, CVE-2025-49179, CVE-2025-49180