CVE-2022-1923
Publication date 19 July 2022
Last updated 24 July 2024
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| gst-plugins-good1.0 | ||
| 22.04 LTS jammy |
Fixed 1.20.3-0ubuntu1
|
|
| 20.04 LTS focal |
Fixed 1.16.3-0ubuntu1.1
|
|
| 18.04 LTS bionic |
Fixed 1.14.5-0ubuntu1~18.04.3
|
|
| 16.04 LTS xenial |
Fixed 1.8.3-1ubuntu0.5+esm1
|
|
| 14.04 LTS trusty | Ignored end of standard support |
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Get Ubuntu ProSeverity score breakdown
| Parameter | Value |
|---|---|
| Base score |
7.8 · High
|
| Attack vector | Local |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | Required |
| Scope | Unchanged |
| Confidentiality | High |
| Integrity impact | High |
| Availability impact | High |
| Vector | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H |
References
Related Ubuntu Security Notices (USN)
- USN-5555-1
- GStreamer Good Plugins vulnerabilities
- 8 August 2022