SUSE SLES12 Security Update : clamav (SUSE-SU-2026:1324-1)

medium Nessus Plugin ID 306480

Synopsis

The remote SUSE host is missing a security update.

Description

The remote SUSE Linux SLES12 host has packages installed that are affected by a vulnerability as referenced in the SUSE- SU-2026:1324-1 advisory.

Update to clamav 1.5.2:

- CVE-2026-20031: improper error handling in the HTML CSS module when splitting UTF-8 strings can lead to denial of service conditions via a crafted HTML file (bsc#1259207).

Non security issue:

- Support transactional updates (jsc#PED-14819).
- Require main and library packages to be of the same version and release (bsc#1258072).

Changelog:

* Fixed a possible infinite loop when scanning some JPEG files by upgrading affected ClamAV dependency, a Rust image library.
* The CVD verification process will now ignore certificate files in the CVD certs directory when the user lacks read permissions.
* Freshclam: Fix CLD verification bug with PrivateMirror option.
* Upgraded the Rust bytes dependency to a newer version to resolve RUSTSEC-2026-0007 advisory.
* Fixed a possible crash caused by invalid pointer alignment on some platforms.
* Minimal required Rust version is now 1.87.

Tenable has extracted the preceding description block directly from the SUSE 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

Update the affected packages.

Plugin Details

Severity: Medium

ID: 306480

File Name: suse_SU-2026-1324-1.nasl

Version: 1.1

Type: Local

Agent: unix

Family: SuSE Local Security Checks

Published: 4/15/2026

Updated: 4/15/2026

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

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Medium

Base Score: 5

Temporal Score: 3.7

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

CVSS Score Source: CVE-2026-20031

CVSS v3

Risk Factor: Medium

Base Score: 5.3

Temporal Score: 4.6

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

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

Vulnerability Information

CPE: cpe:/o:novell:suse_linux:12, p-cpe:/a:novell:suse_linux:clamav-devel, p-cpe:/a:novell:suse_linux:clamav-milter, p-cpe:/a:novell:suse_linux:libclamav12, p-cpe:/a:novell:suse_linux:libclammspack0, p-cpe:/a:novell:suse_linux:clamav-docs-html, p-cpe:/a:novell:suse_linux:libfreshclam4, p-cpe:/a:novell:suse_linux:clamav

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/14/2026

Vulnerability Publication Date: 3/4/2026

Reference Information

CVE: CVE-2026-20031

SuSE: SUSE-SU-2026:1324-1

Detections

Analytics