cve-2022-1923
Vulnerability from cvelistv5
Published
2022-07-19 19:13
Modified
2024-08-03 00:17
Severity ?
Summary
DOS / potential heap overwrite in mkv demuxing using bzip decompression. Integer overflow in matroskademux element in bzip decompression function which causes a segfault, or could cause a heap overwrite, depending on libc and OS. Depending on the libc used, and the underlying OS capabilities, it could be just a segfault or a heap overwrite. If the libc uses mmap for large chunks, and the OS supports mmap, then it is just a segfault (because the realloc before the integer overflow will use mremap to reduce the size of the chunk, and it will start to write to unmapped memory). However, if using a libc implementation that does not use mmap, or if the OS does not support mmap while using libc, then this could result in a heap overwrite.
References
secalert@redhat.comhttps://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225Exploit, Issue Tracking, Patch, Third Party Advisory
secalert@redhat.comhttps://lists.debian.org/debian-lts-announce/2022/08/msg00001.htmlMailing List, Third Party Advisory
secalert@redhat.comhttps://www.debian.org/security/2022/dsa-5204Third Party Advisory
Impacted products
n/aGStreamer
Show details on NVD website

To clipboard 

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