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AlmaLinux 9 : gstreamer1-plugins-bad-free (ALSA-2026:47179)

high Nessus Plugin ID 333099

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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-2026:47179 advisory.

 * gstreamer: gstreamer: rfbsrc/librfb Hextile heap out-of-bounds write with 16bpp framebuffer (CVE-2026-59691)
 * gstreamer: gstreamer: DTLS certificate Subject DN stack buffer overflow in openssl_verify_callback (CVE-2026-59692)

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 gstreamer1-plugins-bad-free, gstreamer1-plugins-bad-free-devel and / or gstreamer1-plugins-bad-free- libs packages.

See Also

https://access.redhat.com/errata/RHSA-2026:47179

https://errata.almalinux.org/9/ALSA-2026-47179.html

Plugin Details

Severity: High

ID: 333099

File Name: alma_linux_ALSA-2026-47179.nasl

Version: 1.1

Type: Local

Published: 8/6/2026

Updated: 8/6/2026

Supported Sensors: Continuous Assessment, Nessus Agent, Tenable Cloud Security, Tenable Self-Hosted Container Security, Nessus

Risk Information

VPR

Risk Factor: Low

Score: 3.5

Percentile: 51.89

CVSS v2

Risk Factor: High

Base Score: 8.5

Temporal Score: 6.3

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

CVSS Score Source: CVE-2026-59691

CVSS v3

Risk Factor: High

Base Score: 7.1

Temporal Score: 6.2

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

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

Vulnerability Information

CPE: cpe:/o:alma:linux:9, cpe:/o:alma:linux:9::appstream, cpe:/o:alma:linux:9::baseos, cpe:/o:alma:linux:9::crb, cpe:/o:alma:linux:9::highavailability, cpe:/o:alma:linux:9::nfv, cpe:/o:alma:linux:9::realtime, cpe:/o:alma:linux:9::resilientstorage, cpe:/o:alma:linux:9::sap, cpe:/o:alma:linux:9::sap_hana, cpe:/o:alma:linux:9::supplementary, p-cpe:/a:alma:linux:gstreamer1-plugins-bad-free-devel, p-cpe:/a:alma:linux:gstreamer1-plugins-bad-free-libs, p-cpe:/a:alma:linux:gstreamer1-plugins-bad-free

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/28/2026

Vulnerability Publication Date: 7/9/2026

Reference Information

CVE: CVE-2026-59691, CVE-2026-59692

CWE: 121, 787

RHSA: 2026:47179