Debian DLA-2727-1 : pyxdg - LTS security update

high Nessus Plugin ID 152194

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Synopsis

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

Description

The remote Debian 9 host has packages installed that are affected by a vulnerability as referenced in the dla-2727 advisory.

It was discovered that there was a code injection issue in PyXDG, a library used to locate freedesktop.org configuration/cache/etc. directories. CVE-2019-12761 A code injection issue was discovered in PyXDG before 0.26 via crafted Python code in a Category element of a Menu XML document in a .menu file. XDG_CONFIG_DIRS must be set up to trigger xdg.Menu.parse parsing within the directory containing this file. This is due to a lack of sanitization in xdg/Menu.py before an eval call. For Debian 9 Stretch, these problems have been fixed in version 0.25-4+deb9u1. We recommend that you upgrade your pyxdg packages. Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS

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 pyxdg packages.

For Debian 9 Stretch, these problems have been fixed in version 0.25-4+deb9u1.

Plugin Details

Severity: High

ID: 152194

File Name: debian_DLA-2727.nasl

Version: 1.4

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 8/3/2021

Updated: 1/24/2025

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: Medium

Base Score: 5.1

Temporal Score: 4

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

CVSS Score Source: CVE-2019-12761

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.7

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:python3-xdg, cpe:/o:debian:debian_linux:9.0, p-cpe:/a:debian:debian_linux:python-xdg

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: 8/3/2021

Vulnerability Publication Date: 6/6/2019

Reference Information

CVE: CVE-2019-12761

Detections

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