Debian dla-4292 : clamav - security update

critical Nessus Plugin ID 261334

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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-4292 advisory.

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4292-1 [email protected] https://www.debian.org/lts/security/ Lucas Kanashiro September 04, 2025 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : clamav Version : 1.0.9+dfsg-1~deb11u1 CVE ID : CVE-2025-20128 CVE-2025-20260 Debian Bug : 1093880 1108046

A couple of vulnerabilities have been fixed in ClamAV, an anti-virus utility for Unix.

CVE-2025-20128

The Object Linking and Embedding 2 (OLE2) decryption routine of ClamAV could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device.

CVE-2025-20260

The PDF scanning processes of ClamAV could allow an unauthenticated, remote attacker to cause a buffer overflow condition, cause a denial of service (DoS) condition, or execute arbitrary code on an affected device.

For Debian 11 bullseye, these problems have been fixed in version 1.0.9+dfsg-1~deb11u1.

We recommend that you upgrade your clamav packages.

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

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 these issues but has instead relied only on the application's self-reported version number.

Solution

Upgrade the clamav packages.

Plugin Details

Severity: Critical

ID: 261334

File Name: debian_DLA-4292.nasl

Version: 1.1

Type: local

Agent: unix

Family: Debian Local Security Checks

Published: 9/4/2025

Updated: 9/4/2025

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: Critical

Base Score: 10

Temporal Score: 8.3

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

CVSS Score Source: CVE-2025-20260

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 9.1

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libclamav-dev, p-cpe:/a:debian:debian_linux:clamav-freshclam, p-cpe:/a:debian:debian_linux:clamav-daemon, p-cpe:/a:debian:debian_linux:clamav-testfiles, p-cpe:/a:debian:debian_linux:clamav, p-cpe:/a:debian:debian_linux:clamav-milter, p-cpe:/a:debian:debian_linux:clamav-docs, p-cpe:/a:debian:debian_linux:libclamav11, p-cpe:/a:debian:debian_linux:clamdscan, p-cpe:/a:debian:debian_linux:clamav-base

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: 9/4/2025

Vulnerability Publication Date: 1/22/2025

Reference Information

CVE: CVE-2025-20128, CVE-2025-20260

IAVB: 2025-B-0098

Detections

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