Debian dla-4792 : tzdata - security update

high Nessus Plugin ID 349469

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Synopsis

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

Description

The remote Debian 12 host has a package installed that is affected by a vulnerability as referenced in the dla-4792 advisory.

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4792-1 [email protected] https://www.debian.org/lts/security/ Emilio Pozuelo Monfort September 23, 2026 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : tzdata Version : 2026c-0+deb12u1

This update includes the changes in tzdata 2026c. Notable changes are:

- - Alberta moved to permanent -06 on 2026-06-18, so it will not fall back from -06 to -07 on 2026-11-01.
- - Morocco moved to permanent +00 on 2026-09-20.
- - Updated leap second list, which was set to expire by the end of December.

For Debian 12 bookworm, this problem has been fixed in version 2026c-0+deb12u1.

We recommend that you upgrade your tzdata packages.

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

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 tzdata packages.

Plugin Details

Severity: High

ID: 349469

File Name: debian_DLA-4792.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 9/23/2026

Updated: 9/23/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:12.0, p-cpe:/a:debian:debian_linux:tzdata

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/23/2026

Vulnerability Publication Date: 9/23/2026

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