Bug 2486317 (CVE-2026-52717) - CVE-2026-52717 gstreamer1-plugin-libav: GStreamer: Denial of service via invalid free in gst-libav pipe protocol handler
Summary: CVE-2026-52717 gstreamer1-plugin-libav: GStreamer: Denial of service via inva...
Keywords:
Status: NEW
Alias: CVE-2026-52717
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-06-08 12:31 UTC by OSIDB Bzimport
Modified: 2026-08-17 17:01 UTC (History)
1 user (show)

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Description OSIDB Bzimport 2026-06-08 12:31:06 UTC 
GStreamer gst-libav invalid free vulnerability. The gst_ffmpeg_pipe_close() function incorrectly calls g_free() on a pointer to an embedded struct member (&demux->ffpipe) that was never heap-allocated. This corrupts glibc heap metadata and causes a deterministic process abort. The issue is triggered when processing any non-seekable media stream through the avdemux_* elements. Introduced in commit 7d916c7377 (December 4, 2024, GStreamer >= 1.25.x). 68 crash samples identified, all showing identical stack trace. Smallest trigger: 7 bytes (AVS format header). Upstream confirmed by maintainer Sebastian Dröge (2026-06-02). Fix planned for GStreamer 1.28.4 or 1.28.5. Upstream issue: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/work_items/5101 (confidential). Reported via PSIRTSUPT-17135 by Ramesh Adhikari (CoE-CNDS Lab, VJTI, Mumbai, India).
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