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RockyLinux 9 : libpng (RLSA-2026:3405)

high Nessus Plugin ID 300569

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Synopsis

The remote RockyLinux host is missing one or more security updates.

Description

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:3405 advisory.

 * libpng: libpng: Information disclosure and denial of service via integer truncation in simplified write API (CVE-2026-22801)

 * libpng: libpng: Denial of service and information disclosure via heap buffer over-read in png_image_finish_read (CVE-2026-22695)

 * libpng: LIBPNG has a heap buffer overflow in png_set_quantize (CVE-2026-25646)

Tenable has extracted the preceding description block directly from the RockyLinux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://bugzilla.redhat.com/show_bug.cgi?id=2438542

https://bugzilla.redhat.com/show_bug.cgi?id=2428824

https://bugzilla.redhat.com/show_bug.cgi?id=2428825

https://errata.rockylinux.org/RLSA-2026:3405

Plugin Details

Severity: High

ID: 300569

File Name: rocky_linux_RLSA-2026-3405.nasl

Version: 1.1

Type: local

Published: 3/4/2026

Updated: 3/4/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.6

Temporal Score: 6

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

CVSS Score Source: CVE-2026-25646

CVSS v3

Risk Factor: High

Base Score: 8.1

Temporal Score: 7.3

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

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

CVSS v4

Risk Factor: High

Base Score: 8.3

Threat Score: 7

Threat Vector: CVSS:4.0/E:P

Vector: CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:L/VI:L/VA:H/SC:N/SI:N/SA:N

Vulnerability Information

CPE: p-cpe:/a:rocky:linux:libpng-devel-debuginfo, p-cpe:/a:rocky:linux:libpng-devel, p-cpe:/a:rocky:linux:libpng-debugsource, p-cpe:/a:rocky:linux:libpng, cpe:/o:rocky:linux:9, p-cpe:/a:rocky:linux:libpng-debuginfo

Required KB Items: Host/local_checks_enabled, Host/RockyLinux/release, Host/RockyLinux/rpm-list, Host/cpu

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/28/2026

Vulnerability Publication Date: 1/12/2026

Reference Information

CVE: CVE-2026-22695, CVE-2026-22801, CVE-2026-25646