openSUSE 16 Security Update : libxml2 (openSUSE-SU-2026:21317-1)

low Nessus Plugin ID 327233

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Synopsis

The remote openSUSE host is missing one or more security updates.

Description

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:21317-1 advisory.

This update for libxml2 fixes the following issues

- CVE-2026-6732: crafted XSD-validated document can cause a denial of service (bsc#1262719).
- CVE-2026-11979: stack-based buffer overflows in the `xmlcatalog` utility when running in `--shell` mode (bsc#1269790).

Tenable has extracted the preceding description block directly from the SUSE 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

Update the affected libxml2-2, libxml2-devel, libxml2-tools and / or python313-libxml2 packages.

Plugin Details

Severity: Low

ID: 327233

File Name: openSUSE-2026-21317-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 7/16/2026

Updated: 7/16/2026

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.9

Percentile: 96.92

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2026-11979

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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

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

CVSS v4

Risk Factor: Low

Base Score: 1.8

Threat Score: 0.9

Threat Vector: CVSS:4.0/E:P

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

Vulnerability Information

CPE: p-cpe:/a:novell:opensuse:libxml2-tools, cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:libxml2-devel, p-cpe:/a:novell:opensuse:libxml2-2, p-cpe:/a:novell:opensuse:python313-libxml2

Required KB Items: Host/local_checks_enabled, Host/cpu, Host/SuSE/release, Host/SuSE/rpm-list

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 7/13/2026

Vulnerability Publication Date: 4/23/2026

Reference Information

CVE: CVE-2026-11979, CVE-2026-6732

Detections

Analytics