CVE-2026-53702 — Gstreamer1-plugins-bad-free: gstreamer: stack buffer overflow in h.265 buffering period sei parser

Affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9

A stack buffer overflow flaw was found in the GStreamer H.265 codec parser library (gst-plugins-bad). When parsing a buffering period SEI message, the parser uses an incorrect loop bound derived from cpb_cnt_minus1[i] (the loop index) instead of the sub-layer 0 CPB count cpb_cnt_minus1[0] from the referenced Sequence Parameter Set. A crafted H.265 video file or stream can cause the parser to write beyond the bounds of stack-allocated CPB delay arrays, resulting in a crash or potential stack memory corruption.

USN-8446-1 — gst-plugins-bad1.0 vulnerabilities

Affected: Ubuntu:26.04:LTS: gst-plugins-bad1.0

It was discovered that GStreamer Bad Plugins incorrectly handled parsing H.266/VVC picture partition data. An attacker could use this issue to cause GStreamer Bad Plugins to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-53701)

It was discovered that GStreamer Bad Plugins incorrectly handled parsing H.265 buffering period metadata. An attacker could use this issue to cause GStreamer Bad Plugins to crash, resulting in a denial of service, or possibly execute arbitrary code. (CVE-2026-53702)

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CVE-2026-53702 — Gstreamer1-plugins-bad-free: gstreamer: stack buffer overflow in h.265 buffering period sei parser

USN-8446-1 — gst-plugins-bad1.0 vulnerabilities