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Debian dla-4465 : clamav - security update

high Nessus Plugin ID 297645

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Synopsis

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

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4465 advisory.

 - ------------------------------------------------------------------------- Debian LTS Advisory DLA-4465-1 [email protected] https://www.debian.org/lts/security/ Emilio Pozuelo Monfort February 03, 2026 https://wiki.debian.org/LTS
 - -------------------------------------------------------------------------

 Package : clamav Version : 1.4.3+dfsg-1~deb11u1

 The 1.0 version of ClamAV, an anti-virus utility for Unix, had recently been discontinued upstream, and was set to no longer accept signature updates on November 28, 2026. This update brings ClamAV 1.4 to bullseye, extending the upstream support.

 This update also includes a new version of libclamunrar for compatibility with rar files, and rebuilds of c-icap-modules, havp, cyrus-imapd and pg-snakeoil for the new libclamav12 library.

 For Debian 11 bullseye, this problem has been fixed in version 1.4.3+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 this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the clamav packages.

See Also

https://security-tracker.debian.org/tracker/source-package/clamav

https://packages.debian.org/source/bullseye/clamav

Plugin Details

Severity: High

ID: 297645

File Name: debian_DLA-4465.nasl

Version: 1.1

Type: local

Agent: unix

Published: 2/3/2026

Updated: 2/3/2026

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:clamav, p-cpe:/a:debian:debian_linux:clamav-base, p-cpe:/a:debian:debian_linux:clamav-daemon, p-cpe:/a:debian:debian_linux:clamav-milter, p-cpe:/a:debian:debian_linux:clamdscan, p-cpe:/a:debian:debian_linux:libclamav11, p-cpe:/a:debian:debian_linux:clamav-doc, p-cpe:/a:debian:debian_linux:clamav-docs, p-cpe:/a:debian:debian_linux:clamav-freshclam, p-cpe:/a:debian:debian_linux:clamav-testfiles, p-cpe:/a:debian:debian_linux:libclamav-dev, p-cpe:/a:debian:debian_linux:libclamav12

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2/3/2026

Vulnerability Publication Date: 2/3/2026