Detections
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Ubuntu 14.04 LTS / 16.04 LTS : libpng vulnerabilities (USN-8081-1)

high Nessus Plugin ID 302209

Synopsis

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

Description

The remote Ubuntu 14.04 LTS / 16.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8081-1 advisory.

 It was discovered that libpng did not properly handle memory when processing certain PNG files. An attacker could possibly use this issue to cause libpng to crash, resulting in a denial of service, or disclose sensitive information. (CVE-2025-64505)

 Joshua Inscoe discovered that libpng did not properly handle memory when processing certain PNG files. An attacker could possibly use this issue to cause libpng to crash, resulting in a denial of service, disclose sensitive information, or execute arbitrary code. (CVE-2026-25646)

Tenable has extracted the preceding description block directly from the Ubuntu 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 libpng12-0, libpng12-dev and / or libpng3 packages.

See Also

https://ubuntu.com/security/notices/USN-8081-1

Plugin Details

Severity: High

ID: 302209

File Name: ubuntu_USN-8081-1.nasl

Version: 1.1

Type: local

Agent: unix

Published: 3/13/2026

Updated: 3/13/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, 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:canonical:ubuntu_linux:libpng12-dev, cpe:/o:canonical:ubuntu_linux:14.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libpng12-0, cpe:/o:canonical:ubuntu_linux:16.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:libpng3

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/11/2026

Vulnerability Publication Date: 11/11/2025

Reference Information

CVE: CVE-2025-64505, CVE-2026-25646

IAVA: 2026-A-0135

USN: 8081-1