Debian dla-4573 : libpng-dev - security update

medium Nessus Plugin ID 313514

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-4573 advisory.

------------------------------------------------------------------------- Debian LTS Advisory DLA-4573-1 [email protected] https://www.debian.org/lts/security/ Tobias Frost May 09, 2026 https://wiki.debian.org/LTS
-------------------------------------------------------------------------

Package : libpng1.6 Version : 1.6.37-3+deb11u4 CVE ID : CVE-2026-34757 Debian Bug : 1133051

A security vulnerability has been discovered in libpng, a library implementing an interface for reading and writing PNG (Portable Network Graphics) files, which could leading to corrupted chunk data and potential heap information disclosure.

For Debian 11 bullseye, this problem has been fixed in version 1.6.37-3+deb11u4.

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 LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
signature.asc Description: PGP signature

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: Medium

ID: 313514

File Name: debian_DLA-4573.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Debian Local Security Checks

Published: 5/9/2026

Updated: 5/9/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.3

CVSS v2

Risk Factor: Low

Base Score: 3.6

Temporal Score: 2.7

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

CVSS Score Source: CVE-2026-34757

CVSS v3

Risk Factor: Medium

Base Score: 5.1

Temporal Score: 4.5

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

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

Vulnerability Information

CPE: p-cpe:/a:debian:debian_linux:libpng16-16-udeb, p-cpe:/a:debian:debian_linux:libpng-tools, cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:libpng16-16, p-cpe:/a:debian:debian_linux:libpng-dev

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

Exploit Ease: No known exploits are available

Patch Publication Date: 5/9/2026

Vulnerability Publication Date: 4/9/2026

Reference Information

CVE: CVE-2026-34757

Detections

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