Debian dla-4673 : dpkg - security update

high Nessus Plugin ID 325676

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-4673 advisory.

- ------------------------------------------------------------------------- Debian LTS Advisory DLA-4673-1 [email protected] https://www.debian.org/lts/security/ Arnaud Rebillout July 08, 2026 https://wiki.debian.org/LTS
- -------------------------------------------------------------------------

Package : dpkg Version : 1.20.14 CVE ID : CVE-2025-6297 Debian Bug : 1061404 1065575 1107971 1108192

A vulnerability have been discovered in dpkg, the Debian package manager (dpkg is the low-level tool that actually installs or removes packages).

CVE-2025-6297

It was discovered that dpkg-deb does not properly sanitize directory permissions when extracting a control member into a temporary directory, which is documented as being a safe operation even on untrusted data. This may result in leaving temporary files behind on cleanup. Given automated and repeated execution of dpkg-deb commands on adversarial .deb packages or with well compressible files, placed inside a directory with permissions not allowing removal by a non-root user, this can end up in a DoS scenario due to causing disk quota exhaustion or disk full conditions.

Additionally, this version includes some minor security fixes that didn't receive a CVE number, but were reported on the Debian bug tracker, see the list of Debian bugs above.

For Debian 11 bullseye, this problem has been fixed in version 1.20.14.

We recommend that you upgrade your dpkg packages.

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

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 dpkg packages.

Plugin Details

Severity: High

ID: 325676

File Name: debian_DLA-4673.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 7/8/2026

Updated: 7/8/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.65

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2025-6297

CVSS v3

Risk Factor: High

Base Score: 8.2

Temporal Score: 7.1

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

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

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:dselect, p-cpe:/a:debian:debian_linux:libdpkg-dev, p-cpe:/a:debian:debian_linux:dpkg, p-cpe:/a:debian:debian_linux:dpkg-dev, p-cpe:/a:debian:debian_linux:libdpkg-perl

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/8/2026

Vulnerability Publication Date: 7/1/2025

Reference Information

CVE: CVE-2025-6297

Detections

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