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CVE-2022-1923

Publication date 19 July 2022

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.8 · High

Score breakdown

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 22.10 kinetic
Not affected
22.04 LTS jammy
Fixed 1.20.3-0ubuntu1
21.10 impish Ignored end of life
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
14.04 LTS trusty Ignored end of standard support

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
gst-plugins-good1.0

Severity 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

Other references