Debian dsa-6537 : libpng-dev - security update

critical Nessus Plugin ID 362451

Synopsis

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

Description

The remote Debian 13 host has packages installed that are affected by a vulnerability as referenced in the dsa-6537 advisory.

- ------------------------------------------------------------------------- Debian Security Advisory DSA-6537-1 [email protected] https://www.debian.org/security/ Moritz Muehlenhoff October 01, 2026 https://www.debian.org/security/faq
- -------------------------------------------------------------------------

Package : libpng1.6 CVE ID : CVE-2026-46675

A use-after-free was discovered in libpng, a library implementing an interface for reading and writing PNG (Portable Network Graphics), which could result in denial of service.

For the stable distribution (trixie), this problem has been fixed in version 1.6.48-1+deb13u6.

We recommend that you upgrade your libpng1.6 packages.

For the detailed security status of libpng1.6 please refer to its security tracker page at:
https://security-tracker.debian.org/tracker/libpng1.6

Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/

Mailing list: [email protected]

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 libpng-dev packages.

Plugin Details

Severity: Critical

ID: 362451

File Name: debian_DSA-6537.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 10/1/2026

Updated: 10/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.35

CVSS v2

Risk Factor: High

Base Score: 7.5

Temporal Score: 5.5

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

CVSS Score Source: CVE-2026-46675

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.5

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:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:13.0, p-cpe:/a:debian:debian_linux:libpng-dev, p-cpe:/a:debian:debian_linux:libpng-tools, p-cpe:/a:debian:debian_linux:libpng16-16-udeb, p-cpe:/a:debian:debian_linux:libpng16-16t64

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

Exploit Ease: No known exploits are available

Patch Publication Date: 10/1/2026

Vulnerability Publication Date: 10/1/2026

Reference Information

CVE: CVE-2026-46675

Detections

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