AlmaLinux 9 : gstreamer1-plugins-bad-free, gstreamer1-plugins-base, gstreamer1-plugins-good, and gstreamer1-plugins-ugly-free (ALSA-2026:6300)

high Nessus Plugin ID 305005

Synopsis

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

Description

The remote AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:6300 advisory.

* GStreamer: GStreamer: Arbitrary code execution via ASF file processing (CVE-2026-2920)
* GStreamer: GStreamer: Remote Code Execution via heap-based buffer overflow in JPEG parser (CVE-2026-3082)
* GStreamer: GStreamer: Remote Code Execution via Heap-based Buffer Overflow in rtpqdm2depay (CVE-2026-3085)
* GStreamer: GStreamer: Arbitrary code execution via RIFF palette integer overflow in AVI file handling (CVE-2026-2921)
* GStreamer: GStreamer: Remote Code Execution via Out-Of-Bounds Write in rtpqdm2depay (CVE-2026-3083)
* GStreamer: GStreamer: Remote Code Execution via out-of-bounds write in RealMedia Demuxer (CVE-2026-2922)
* GStreamer: GStreamer: Remote Code Execution via out-of-bounds write in DVB Subtitles handling (CVE-2026-2923)

Tenable has extracted the preceding description block directly from the AlmaLinux 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://errata.almalinux.org/9/ALSA-2026-6300.html

https://access.redhat.com/errata/RHSA-2026:6300

Plugin Details

Severity: High

ID: 305005

File Name: alma_linux_ALSA-2026-6300.nasl

Version: 1.1

Type: Local

Published: 4/5/2026

Updated: 4/5/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

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-2026-3085

CVSS v3

Risk Factor: High

Base Score: 8.8

Temporal Score: 7.7

Vector: CVSS:3.0/AV:N/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:alma:linux:9::appstream, p-cpe:/a:alma:linux:gstreamer1-plugins-bad-free-libs, p-cpe:/a:alma:linux:gstreamer1-plugins-base-tools, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:gstreamer1-plugins-base, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap_hana, p-cpe:/a:alma:linux:gstreamer1-plugins-good, p-cpe:/a:alma:linux:gstreamer1-plugins-bad-free, cpe:/o:alma:linux:9::sap, p-cpe:/a:alma:linux:gstreamer1-plugins-ugly-free, cpe:/o:alma:linux:9::crb, p-cpe:/a:alma:linux:gstreamer1-plugins-good-gtk, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9, p-cpe:/a:alma:linux:gstreamer1-plugins-bad-free-devel, p-cpe:/a:alma:linux:gstreamer1-plugins-base-devel, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::baseos

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

Exploit Ease: No known exploits are available

Patch Publication Date: 3/31/2026

Vulnerability Publication Date: 3/7/2026

Reference Information

CVE: CVE-2026-2920, CVE-2026-2921, CVE-2026-2922, CVE-2026-2923, CVE-2026-3082, CVE-2026-3083, CVE-2026-3085

CWE: 120, 1284, 190, 787

RHSA: 2026:6300