High7.8Red Hat Linux

High [CVE-2026-2921] Arbitrary code execution via RIFF palette integer overflow in AVI file handling

This high-severity Red Hat Linux advisory covers CVE-2026-2921 affecting Red Hat Enterprise Linux 10.0 Extended Update Support, Red Hat Enterprise Linux 7 Extended Lifecycle Support, Red Hat Enterprise Linux 8.2 Advanced Update Support.

CVE-2026-2921 Published Mar 13, 2026

CVE-2026-2921

Affected products & platforms

Red Hat LinuxUnclassified

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Summary

Arbitrary code execution via RIFF palette integer overflow in AVI file handling. Red Hat rates this important (CVSS 7.8).

Weakness: CWE-190. Affected package(s): gstreamer1-plugins-good, gstreamer1-plugins-ugly-free, gstreamer1-plugins-base, gstreamer1-plugins-bad-free, gstreamer-plugins-base, gstreamer-plugins-good.

Resolved in Red Hat advisory RHSA-2026:19180 — update the affected packages (`sudo dnf update`).

Affected products named by the advisory: Red Hat Enterprise Linux 10.0 Extended Update Support; Red Hat Enterprise Linux 7 Extended Lifecycle Support; Red Hat Enterprise Linux 8.2 Advanced Update Support; Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support; and 10 more.

Affected versions

gstreamer1-plugins-good-0:1.26.7-2.el10_2
gstreamer1-plugins-ugly-free-0:1.22.12-4.el9_7
gstreamer1-plugins-base-0:1.22.12-5.el9_7
gstreamer1-plugins-base-0:1.22.1-4.el9_4
gstreamer1-plugins-ugly-free-0:1.22.12-4.el9_6
gstreamer1-plugins-good-0:1.16.1-4.el8_6
gstreamer1-plugins-base-0:1.16.1-4.el8_6
gstreamer1-plugins-good-0:1.16.1-4.el8_4
gstreamer1-plugins-base-0:1.22.12-5.el9_6
gstreamer1-plugins-base-0:1.16.1-4.el8_4
gstreamer1-plugins-base-0:1.24.11-2.el10_1
gstreamer1-plugins-bad-free-0:1.22.12-5.el9_7

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Fixed versions

RHSA-2026:19180

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

Mitigation checklist

Recommended fix / mitigation

Update the affected package(s) to the fixed version shipped in RHSA-2026:19180 (`sudo dnf update` / `yum update`).

Official advisory · high-confidence parse· fetched 2 months ago·verify at source

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