CVE-2024-47834 GHSL-2024-280: Gstreamer Use-After-Free read in Matroska CodecPrivate
An attacker can trigger a use-after-free read in GStreamer's Matroska demuxer, potentially causing crashes or leaking memory contents.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2024-47834?
CVE-2024-47834 is a medium-severity use after free vulnerability in Gstreamer Gstreamer, published on 11 Dec 2024. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
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.
Weakness: CWE-416
Which versions are affected by CVE-2024-47834?
It affects 1 product.
Products include Gstreamer Gstreamer.
How do I fix CVE-2024-47834?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2024-47834 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2024-47834 exists.
Other vulnerabilities in Gstreamer Gstreamer
- CVE-2026-3083 GStreamer rtpqdm2depay Out-Of-Bounds Write Remote Code Execution Vulnerability
- CVE-2026-3085 GStreamer rtpqdm2depay Heap-based Buffer Overflow Remote Code Execution Vulnerability
- CVE-2023-37328 GStreamer PGS File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
- CVE-2023-37329 GStreamer SRT File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
- CVE-2023-38103 GStreamer RealMedia File Parsing Integer Overflow Remote Code Execution Vulnerability
Sources
Also known as AZL-62402, DEBIAN-CVE-2024-47834, UBUNTU-CVE-2024-47834.