Debian dla-4319 : libxml2 - security update

medium Nessus Plugin ID 266335

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Synopsis

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

Description

The remote Debian 11 host has packages installed that are affected by multiple vulnerabilities as referenced in the dla-4319 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-4319-1 [email protected] https://www.debian.org/lts/security/ Guilhem Moulin September 30, 2025 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : libxml2 Version : 2.9.10+dfsg-6.7+deb11u9 CVE ID : CVE-2025-9714 CVE-2025-7425 Debian Bug : 1109122

Two security issues were found in libxml2, the GNOME XML library, which could yield denial of service or heap corruption.

CVE-2025-9714

It was discovered that recursion evaluation in XPath evaluation is uncontrolled and therefore allows a local attacker to cause a stack overflow via crafted expressions.

CVE-2025-7425

Sergei Glazunov discovered a heap-use-after-free in xmlFreeID() caused by `atype` corruption. While the vulnerability was reported against libxslt, the XSLT 1.0 processing library, it is now mitigated in this libxml2 version.

For Debian 11 bullseye, this problem has been fixed in version 2.9.10+dfsg-6.7+deb11u9.

We recommend that you upgrade your libxml2 packages.

For the detailed security status of libxml2 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/libxml2

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 Attachment:
signature.asc Description: PGP signature

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 libxml2 packages.

Plugin Details

Severity: Medium

ID: 266335

File Name: debian_DLA-4319.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 10/1/2025

Updated: 10/1/2025

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

Risk Information

VPR

Risk Factor: High

Score: 7.9

CVSS v2

Risk Factor: Medium

Base Score: 4.6

Temporal Score: 3.4

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

CVSS Score Source: CVE-2025-9714

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:N/I:N/A:H

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libxml2-utils, p-cpe:/a:debian:debian_linux:python3-libxml2-dbg, p-cpe:/a:debian:debian_linux:python3-libxml2, p-cpe:/a:debian:debian_linux:libxml2-dev, p-cpe:/a:debian:debian_linux:libxml2, p-cpe:/a:debian:debian_linux:libxml2-doc

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/30/2025

Vulnerability Publication Date: 7/10/2025

Reference Information

CVE: CVE-2025-7425, CVE-2025-9714

Detections

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