Skip to content
OpenAdvisories
Medium · 6.5 CVE-2026-121611 EUVD-2026-120052GHSA-m394-f7p9-g5gg

Gstreamer1-plugins-bad-free: gst-plugins-bad: use of uninitialized gsth265hrdparams in gst_h265_parse_vps() multi-hrd workaround loop

Published Nov 9, 2026 · Updated Nov 10, 2026 · Assigned by redhat

Description

A flaw was found in GStreamer's gst-plugins-bad package. A use of uninitialized memory vulnerability exists in the H.265 (HEVC) bitstream parser when processing Video Parameter Sets that declare more than one HRD (Hypothetical Reference Decoder) parameter set. A remote attacker could exploit this by providing a crafted H.265 media file or stream that, when processed by an application using GStreamer, causes unpredictable parser behavior and may crash the application. This can lead to a denial of service for any application using GStreamer to play back H.265 content.

Affected products

VendorProductAffectedFixed
Red Hat Red Hat Enterprise Linux 10 — —
Red Hat Red Hat Enterprise Linux 7 — —
Red Hat Red Hat Enterprise Linux 8 — —
Red Hat Red Hat Enterprise Linux 9 — —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 gst-plugins-bad1.0 1.28.9-1 —
Debian 13 gst-plugins-bad1.0 No fix yet —
Debian 12 gst-plugins-bad1.0 No fix yet —
ReleasePackageFixed inAdvisory
Ubuntu 26.10 gst-plugins-bad1.0 No fix yet —
Ubuntu 26.04 LTS gst-plugins-bad1.0 No fix yet —
Show 6 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
Ubuntu Pro 24.04 LTS gst-plugins-bad1.0 No fix yet —
Ubuntu Pro 22.04 LTS gst-plugins-bad1.0 No fix yet —
Ubuntu Pro 20.04 LTS gst-plugins-bad1.0 No fix yet —
Ubuntu Pro 18.04 LTS gst-plugins-bad1.0 No fix yet —
Ubuntu Pro 16.04 LTS gst-plugins-bad1.0 No fix yet —
Ubuntu Pro 14.04 LTS gst-plugins-bad1.0 No fix yet —

Advisories 1

References