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Debian dsa-6209 : xdg-dbus-proxy - security update

medium Nessus Plugin ID 307631

Synopsis

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

Description

The remote Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6209 advisory.

 - ------------------------------------------------------------------------- Debian Security Advisory DSA-6209-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff April 13, 2026 https://www.debian.org/security/faq
 - -------------------------------------------------------------------------

 Package : xdg-dbus-proxy CVE ID : CVE-2026-34080

 It was discovered that incorrect parsing of policy rules in the xdg-dbus-proxy (a filtering proxy for D-Bus connections) allowed the bypass of eavesdrop restrictions, which could result in information disclosure.

 For the stable distribution (trixie), this problem has been fixed in version 0.1.6-1+deb13u1.

 We recommend that you upgrade your xdg-dbus-proxy packages.

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

 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 xdg-dbus-proxy packages.

See Also

http://www.nessus.org/u?b1ce1ba6

https://security-tracker.debian.org/tracker/CVE-2026-34080

https://packages.debian.org/source/trixie/xdg-dbus-proxy

Plugin Details

Severity: Medium

ID: 307631

File Name: debian_DSA-6209.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 4/20/2026

Updated: 4/20/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2026-34080

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

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

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

CVSS v4

Risk Factor: Medium

Base Score: 6.8

Threat Score: 4.3

Threat Vector: CVSS:4.0/E:U

Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:xdg-dbus-proxy-tests, p-cpe:/a:debian:debian_linux:xdg-dbus-proxy, cpe:/o:debian:debian_linux:13.0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/13/2026

Vulnerability Publication Date: 4/7/2026

Reference Information

CVE: CVE-2026-34080