Amazon Linux 2023 : gstreamer1-plugin-openh264, gstreamer1-plugins-bad-free, gstreamer1-plugins-bad-free-devel (ALAS2023-2026-1521)

high Nessus Plugin ID 304622

Synopsis

The remote Amazon Linux 2023 host is missing a security update.

Description

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2026-1521 advisory.

Various out-of-bounds reads and writes in the DVB subtitle decoder that can cause crashes for certain input files. (CVE-2026-2923)

GStreamer JPEG Parser Heap-based Buffer Overflow Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of GStreamer. Interaction with this library is required to exploit this vulnerability but attack vectors may vary depending on the implementation. The specific flaw exists within the processing of Huffman tables. The issue results from the lack of proper validation of the length of user-supplied data prior to copying it to a fixed-length heap-based buffer. An attacker can leverage this vulnerability to execute code in the context of the current process. (CVE-2026-3082)

Tenable has extracted the preceding description block directly from the tested product 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

Run 'dnf update gstreamer1-plugins-bad-free --releasever 2023.10.20260330' or or 'dnf update --advisory ALAS2023-2026-1521 --releasever 2023.10.20260330' to update your system.

Plugin Details

Severity: High

ID: 304622

File Name: al2023_ALAS2023-2026-1521.nasl

Version: 1.1

Type: Local

Agent: unix

Family: Amazon Linux Local Security Checks

Published: 4/2/2026

Updated: 4/1/2026

Supported Sensors: Nessus Agent, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2026-3082

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: p-cpe:/a:amazon:linux:gstreamer1-plugins-bad-free-libs, p-cpe:/a:amazon:linux:gstreamer1-plugins-bad-free-debugsource, cpe:/o:amazon:linux:2023, p-cpe:/a:amazon:linux:gstreamer1-plugins-bad-free-devel, p-cpe:/a:amazon:linux:gstreamer1-plugin-openh264, p-cpe:/a:amazon:linux:gstreamer1-plugin-openh264-debuginfo, p-cpe:/a:amazon:linux:gstreamer1-plugins-bad-free-debuginfo, p-cpe:/a:amazon:linux:gstreamer1-plugins-bad-free, p-cpe:/a:amazon:linux:gstreamer1-plugins-bad-free-libs-debuginfo

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

Exploit Ease: No known exploits are available

Patch Publication Date: 4/1/2026

Vulnerability Publication Date: 3/7/2026

Reference Information

CVE: CVE-2026-2923, CVE-2026-3082

Detections

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