CVE-2024-47834
GStreamer is a library for constructing graphs of media-handling components. An Use-After-Free read vulnerability has been discovered affecting the processing of CodecPrivate elements in Matroska streams. In the GST_MATROSKA_ID_CODECPRIVATE case within the gst_matroska_demux_parse_stream function, a data chunk is allocated using gst_ebml_read_binary. Later, the allocated memory is freed in the gst_matroska_track_free function, by the call to g_free (track->codec_priv). Finally, the freed memory is accessed in the caps_serialize function through gst_value_serialize_buffer. The freed memory will be accessed in the gst_value_serialize_buffer function. This results in a UAF read vulnerability, as the function tries to process memory that has already been freed. This vulnerability is fixed in 1.24.10.
- Score
- CVSS 3.1 9.1 Critical
- Status
- Modified - security-advisories@github.com
- Published
- 2024-12-12
- Last modified
- 2025-11-03
- Weaknesses
- CWE-416
Affected products
References
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/8057.patch
- https://gstreamer.freedesktop.org/security/sa-2024-0030.html
- https://securitylab.github.com/advisories/GHSL-2024-280_Gstreamer/
- https://lists.debian.org/debian-lts-announce/2025/02/msg00035.html
