openSUSE 16 Security Update : libpng16 (openSUSE-SU-2026:20017-1)

high Nessus Plugin ID 284815

Synopsis

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

Description

The remote openSUSE 16 host has packages installed that are affected by multiple vulnerabilities as referenced in the openSUSE-SU-2026:20017-1 advisory.

- CVE-2025-64505: heap buffer over-read in `png_do_quantize` when processing PNG files malformed palette indices (bsc#1254157).
- CVE-2025-64506: heap buffer over-read in `png_write_image_8bit` when processing 8-bit input with `convert_to_8bit` enabled (bsc#1254158).
- CVE-2025-64720: out-of-bounds read in `png_image_read_composite` when processing palette images with `PNG_FLAG_OPTIMIZE_ALPHA` enabled (bsc#1254159).
- CVE-2025-65018: heap buffer overflow in `png_image_finish_read` when processing specially crafted 16-bit interlaced PNGs with 8-bit output format (bsc#1254160).
- CVE-2025-66293: out-of-bounds read of the `png_sRGB_base` array when processing palette PNG images with partial transparency and gamma correction (bsc#1254480).

Tenable has extracted the preceding description block directly from the SUSE 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.

Plugin Details

Severity: High

ID: 284815

File Name: openSUSE-2026-20017-1.nasl

Version: 1.1

Type: local

Agent: unix

Family: SuSE Local Security Checks

Published: 1/15/2026

Updated: 1/15/2026

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.0

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.7

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

CVSS Score Source: CVE-2025-66293

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.4

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

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

Vulnerability Information

CPE: cpe:/o:novell:opensuse:16.0, p-cpe:/a:novell:opensuse:libpng16-devel, p-cpe:/a:novell:opensuse:libpng16-compat-devel, p-cpe:/a:novell:opensuse:libpng16-tools, p-cpe:/a:novell:opensuse:libpng16-16, p-cpe:/a:novell:opensuse:libpng16-compat-devel-x86-64-v3, p-cpe:/a:novell:opensuse:libpng16-devel-x86-64-v3, p-cpe:/a:novell:opensuse:libpng16-16-x86-64-v3

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 1/12/2026

Vulnerability Publication Date: 11/24/2025

Reference Information

CVE: CVE-2025-64505, CVE-2025-64506, CVE-2025-64720, CVE-2025-65018, CVE-2025-66293

Detections

Analytics