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Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS : GStreamer Good Plugins vulnerabilities (USN-8798-1)

high Nessus Plugin ID 350300

Synopsis

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

Description

The remote Ubuntu 16.04 LTS / 18.04 LTS / 20.04 LTS / 22.04 LTS / 24.04 LTS / 26.04 LTS host has packages installed that are affected by multiple vulnerabilities as referenced in the USN-8798-1 advisory.

 It was discovered that GStreamer Good Plugins incorrectly parsed certain MRF files. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2026-18295, CVE-2026-18296)

 It was discovered that GStreamer Good Plugins incorrectly parsed certain PNG files. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2026-18298)

 DongHyeon Hwang discovered that GStreamer Good Plugins incorrectly handled certain RTP packets. A remote attacker could possibly use this issue to execute arbitrary code. (CVE-2026-18299)

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 packages.

See Also

https://ubuntu.com/security/notices/USN-8798-1

Plugin Details

Severity: High

ID: 350300

File Name: ubuntu_USN-8798-1.nasl

Version: 1.1

Type: Local

Agent: unix

Published: 9/25/2026

Updated: 9/25/2026

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.9

Percentile: 58.23

CVSS v2

Risk Factor: Critical

Base Score: 10

Temporal Score: 7.4

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

CVSS Score Source: CVE-2026-18299

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: cpe:/o:canonical:ubuntu_linux:16.04:-:lts, cpe:/o:canonical:ubuntu_linux:18.04:-:lts, cpe:/o:canonical:ubuntu_linux:20.04:-:lts, cpe:/o:canonical:ubuntu_linux:22.04:-:lts, cpe:/o:canonical:ubuntu_linux:24.04:-:lts, cpe:/o:canonical:ubuntu_linux:26.04:-:lts, p-cpe:/a:canonical:ubuntu_linux:gstreamer1.0-gtk3, p-cpe:/a:canonical:ubuntu_linux:gstreamer1.0-plugins-good, p-cpe:/a:canonical:ubuntu_linux:gstreamer1.0-pulseaudio, p-cpe:/a:canonical:ubuntu_linux:gstreamer1.0-qt5, p-cpe:/a:canonical:ubuntu_linux:gstreamer1.0-qt6, p-cpe:/a:canonical:ubuntu_linux:libgstreamer-plugins-good1.0-0

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

Exploit Ease: No known exploits are available

Patch Publication Date: 9/21/2026

Vulnerability Publication Date: 8/20/2026

Reference Information

CVE: CVE-2026-18295, CVE-2026-18296, CVE-2026-18298, CVE-2026-18299

USN: 8798-1