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.

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.

Affected: openEuler:22.03-LTS-SP4: gstreamer1-plugins-bad-free, openEuler:24.03-LTS-SP1: gstreamer1-plugins-bad-free, openEuler:24.03-LTS-SP3: gstreamer1-plugins-bad-free, openEuler:20.03-LTS-SP4: gstreamer1-plugins-bad-free

GStreamer is a pipeline-based multi media framework that links together a wide variety of media processing systems to complete complex workflows, based on graphs of filters which operate on media data. This package contains plug-ins that are not tested well enough yet, or the code is not of good enough quality. Security Fix(es):

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.(CVE-2026-53702)

Security update for gstreamer-plugins-bad

Security update for gstreamer-plugins-bad

Affected: Ubuntu:Pro:14.04:LTS: gst-plugins-bad1.0, Ubuntu:Pro:16.04:LTS: gst-plugins-bad1.0, Ubuntu:Pro:18.04:LTS: gst-plugins-bad1.0, Ubuntu:Pro:20.04:LTS: gst-plugins-bad1.0, Ubuntu:Pro:22.04:LTS: gst-plugins-bad1.0, Ubuntu:Pro:24.04:LTS: gst-plugins-bad1.0, Ubuntu:25.10: gst-plugins-bad1.0, Ubuntu:26.04:LTS: gst-plugins-bad1.0

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.

Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in GStreamer ausnutzen, um Informationen offenzulegen, um einen Denial-of-Service-Angriff durchzuführen, um Daten zu beschädigen oder beliebigen Code auszuführen.