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Fencer Intel
high 7.8

CVE-2022-1923 json

DOS / potential heap overwrite in mkv demuxing using bzip decompression.

published 4y ago modified 4mo ago also EUVD-2022-25195

cvss
7.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.4%
EPSS 0.4% chance of exploitation in 30 days, percentile 37%
public exploits
0
none known

Summary

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.

Patch / fix

  • gstreamer gstreamer 1.20.3
  • gst-plugins-good1.0 Debian 14, Debian 13, Debian 12 1.20.3-1

debian advisories DEBIAN-CVE-2022-1923

  • gst-plugins-good1.0 Ubuntu 18.04 LTS 1.14.5-0ubuntu1~18.04.3
  • gst-plugins-good1.0 Ubuntu 20.04 LTS 1.16.3-0ubuntu1.1
  • gst-plugins-good1.0 Ubuntu 22.04 LTS 1.20.3-0ubuntu1
  • gst-plugins-good1.0 Ubuntu Pro 16.04 LTS 1.8.3-1ubuntu0.5+esm1

ubuntu advisories UBUNTU-CVE-2022-1923

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • gstreamer1-plugins-good RHEL 9 1.18.4-6.el9
  • gstreamer1-plugins-good-gtk RHEL 9 1.18.4-6.el9

red hat advisories RHSA-2023:2260

  • gstreamer-plugins-good SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 1.20.1-150400.3.3.1
  • gstreamer-0_10-plugins-good SLE Workstation Extension 12 SP5 0.10.31-17.7.1
  • gstreamer-plugins-good SLES for SAP 15 SP2, SLES 15 SP2-LTSS, SLES 15 SP2-BCL +9 more 1.16.3-150200.3.9.1
  • gstreamer-plugins-good SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +5 more 1.8.3-16.6.2
  • gstreamer-plugins-good SLES for SAP 15 SP1, SLES 15 SP1-LTSS 1.12.5-150000.3.7.2

suse advisories SUSE-SU-2023:3688-1SUSE-SU-2022:3908-1SUSE-SU-2022:3906-1SUSE-SU-2022:2957-1SUSE-SU-2022:2911-1

  • gstreamer1-plugins-good AlmaLinux 9 1.18.4-6.el9
  • gstreamer1-plugins-good-gtk AlmaLinux 9 1.18.4-6.el9

almalinux advisories ALSA-2023:2260

  • gst-plugins-good Alpine 3.24, Alpine 3.23, Alpine 3.22 +4 more 1.20.3-r0

alpine advisories ALPINE-CVE-2022-1923

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Is CVE-2022-1923 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

Check with Fencer

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2022-1923 updated cvss 7.8

gstreamer-plugins-good: Potential heap overwrite in mkv demuxing using bz2 decompression

  • Red Hat Enterprise Linux 6 gstreamer-plugins-good Red Hat Enterprise Linux 7 gstreamer-plugins-good, gstreamer1-plugins-good
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 8 gstreamer1-plugins-good, gstreamer1-plugins-good-gtk
    affected: no fix planned “Will not fix”
  • Red Hat Enterprise Linux 9 gstreamer1-plugins-good, gstreamer1-plugins-good-gtk
    affected: no fix available
  • Red Hat Enterprise Linux AppStream (v. 9) gstreamer1-plugins-good 1.18.4-6.el9, gstreamer1-plugins-good-gtk 1.18.4-6.el9
    fixed: vendor fix RHSA-2023:2260

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.43% chance of exploitation in the next 30 days, higher than 37% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

  • gitlab.freedesktop.org https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/1225 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 7.8 CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • n/a GStreamer

Classification

Weakness
  • CWE-122 Heap-based Buffer Overflow
  • CWE-190 Integer Overflow or Wraparound

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.