CVE-2022-1923
Severity CVSS v4.0:
Pending analysis
Type:
CWE-190
Integer Overflow or Wraparound
Publication date:
19/07/2022
Last modified:
27/06/2023
Description
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.
Impact
Base Score 3.x
7.80
Severity 3.x
HIGH
Vulnerable products and versions
| CPE | From | Up to |
|---|---|---|
| cpe:2.3:a:gstreamer_project:gstreamer:*:*:*:*:*:*:*:* | 1.20.3 (excluding) | |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | ||
| cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* |
To consult the complete list of CPE names with products and versions, see this page