Vulnerability Description
DOS / potential heap overwrite in mkv demuxing using lzo decompression. Integer overflow in matroskademux element in lzo 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gstreamer | Gstreamer | < 1.20.3 |
| Debian | Debian Linux | 10.0 |
Related Weaknesses (CWE)
References
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225ExploitIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2022/08/msg00001.htmlMailing ListThird Party Advisory
- https://www.debian.org/security/2022/dsa-5204Third Party Advisory
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225ExploitIssue TrackingPatch
- https://lists.debian.org/debian-lts-announce/2022/08/msg00001.htmlMailing ListThird Party Advisory
- https://www.debian.org/security/2022/dsa-5204Third Party Advisory
FAQ
What is CVE-2022-1924?
CVE-2022-1924 is a vulnerability with a CVSS score of 7.8 (HIGH). DOS / potential heap overwrite in mkv demuxing using lzo decompression. Integer overflow in matroskademux element in lzo decompression function which causes a segfault, or could cause a heap overwrite...
How severe is CVE-2022-1924?
CVE-2022-1924 has been rated HIGH with a CVSS base score of 7.8/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-1924?
Check the references section above for vendor advisories and patch information. Affected products include: Gstreamer Gstreamer, Debian Debian Linux.