Bug 2130959 (CVE-2022-1923) - CVE-2022-1923 gstreamer-plugins-good: Potential heap overwrite in mkv demuxing using bz2 decompression
Summary: CVE-2022-1923 gstreamer-plugins-good: Potential heap overwrite in mkv demuxin...
Alias: CVE-2022-1923
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 2130960 2130961 Red Hat2131047 Red Hat2131048 Red Hat2131049 Red Hat2131050 Red Hat2131051
Blocks: Embargoed2111231
TreeView+ depends on / blocked
Reported: 2022-09-29 14:32 UTC by Guilherme de Almeida Suckevicz
Modified: 2023-05-09 16:51 UTC (History)
9 users (show)

Fixed In Version: gstreamer-plugins-good 1.20.3
Doc Type: If docs needed, set a value
Doc Text:
A flaw was found in GStreamer. An integer overflow can lead to a heap-based buffer overflow in the mkv demuxer when processing a specially crafted Matroska/WebM file using bzip decompression. This vulnerability can result in application crash, memory corruption, and code execution.
Clone Of:
Last Closed: 2023-05-09 16:51:37 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2023:2260 0 None None None 2023-05-09 07:23:33 UTC

Description Guilherme de Almeida Suckevicz 2022-09-29 14:32:30 UTC
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.


Comment 1 Guilherme de Almeida Suckevicz 2022-09-29 14:32:53 UTC
Created gstreamer1-plugins-good tracking bugs for this issue:

Affects: fedora-all [bug 2130960]

Created mingw-gstreamer1-plugins-good tracking bugs for this issue:

Affects: fedora-all [bug 2130961]

Comment 3 errata-xmlrpc 2023-05-09 07:23:31 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 9

Via RHSA-2023:2260 https://access.redhat.com/errata/RHSA-2023:2260

Comment 4 Product Security DevOps Team 2023-05-09 16:51:34 UTC
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):


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