Description
GStreamer is a library for constructing graphs of media-handling components. An OOB-read vulnerability has been detected in the format_channel_mask function in gst-discoverer.c. The vulnerability affects the local array position, which is defined with a fixed size of 64 elements. However, the function gst_discoverer_audio_info_get_channels may return a guint channels value greater than 64. This causes the for loop to attempt access beyond the bounds of the position array, resulting in an OOB-read when an index greater than 63 is used. This vulnerability can result in reading unintended bytes from the stack. Additionally, the dereference of value->value_nick after the OOB-read can lead to further memory corruption or undefined behavior. This vulnerability is fixed in 1.24.10.
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Product status
References
lists.debian.org/debian-lts-announce/2024/12/msg00021.html
securitylab.github.com/advisories/GHSL-2024-248_Gstreamer/
gitlab.freedesktop.org/...reamer/-/merge_requests/8034.patch
gstreamer.freedesktop.org/security/sa-2024-0018.html