CVE-2022-1924: Integer Overflow
First published: Tue Jul 19 2022(Updated: )
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.
Credit: secalert@redhat.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Gstreamer Project Gstreamer | <1.20.3 | |
| Debian Debian Linux | =10.0 | |
| Debian Debian Linux | =11.0 | |
| debian/gst-plugins-good1.0 | <=1.14.4-1+deb10u1 | 1.14.4-1+deb10u3 1.18.4-2+deb11u2 1.22.0-5+deb12u1 1.22.6-1 |
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Reference Links
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225
- https://lists.debian.org/debian-lts-announce/2022/08/msg00001.html
- https://www.debian.org/security/2022/dsa-5204
- https://gstreamer.freedesktop.org/security/sa-2022-0002.html
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/ad6012159acf18c6b5c0f4edf037e8c9a2dbc966
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/fafb028196c78062892261d4e042e646ef8e518b
- https://security-tracker.debian.org/tracker/CVE-2022-1924
Frequently Asked Questions
What is CVE-2022-1924?
CVE-2022-1924 is a vulnerability that allows for a denial of service (DOS) attack or potential heap overwrite in mkv demuxing using lzo decompression.
What is the severity of CVE-2022-1924?
The severity of CVE-2022-1924 is high, with a CVSS score of 7.8.
Which software is affected by CVE-2022-1924?
The Gstreamer Project Gstreamer versions up to 1.20.3, Debian Debian Linux 10.0, Debian Debian Linux 11.0, and debian/gst-plugins-good1.0 up to version 1.14.4-1+deb10u1 are affected by CVE-2022-1924.
How can I fix the CVE-2022-1924 vulnerability?
To fix the CVE-2022-1924 vulnerability, update Gstreamer Project Gstreamer to version 1.20.4 or later, Debian Debian Linux to version 10.0+deb10u4, 11.0+deb11u2, or 12.0+deb12u1, and debian/gst-plugins-good1.0 to version 1.14.4-1+deb10u3 or later.
Is there any additional information about CVE-2022-1924?
Yes, for more information about CVE-2022-1924, you can refer to the GitLab issue #1225 and Debian Security Advisory DSA-5204.
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