CVE-2021-3497 Use after free in gstreamer-plugins-good
Attackers can trigger a use-after-free vulnerability in GStreamer by providing malformed Matroska files, potentially leading to code execution or crashes.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2021-3497?
CVE-2021-3497 is a high-severity use after free vulnerability in Debian Debian Linux, published on 19 Apr 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
GStreamer before 1.18.4 might access already-freed memory in error code paths when demuxing certain malformed Matroska files.
Weakness: CWE-416
Which versions are affected by CVE-2021-3497?
It affects 3 products.
Linux distribution packages (10)
gstreamer1-plugins-good AlmaLinux:8 | All versions | 1.16.1-3.el8 |
gstreamer1-plugins-good-gtk AlmaLinux:8 | All versions | 1.16.1-3.el8 |
gstreamer1-plugins-good Red Hat:enterprise_linux:8::appstream | All versions | 0:1.16.1-3.el8 |
gstreamer1-plugins-good-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.16.1-3.el8 |
gstreamer1-plugins-good-debugsource Red Hat:enterprise_linux:8::appstream | All versions | 0:1.16.1-3.el8 |
gstreamer1-plugins-good-gtk Red Hat:enterprise_linux:8::appstream | All versions | 0:1.16.1-3.el8 |
gstreamer1-plugins-good-gtk-debuginfo Red Hat:enterprise_linux:8::appstream | All versions | 0:1.16.1-3.el8 |
gstreamer1-plugins-good Rocky Linux:8 | All versions | 0:1.16.1-3.el8 |
gstreamer-plugins-good SUSE:Linux Enterprise Server 12 SP5 | All versions | 1.8.3-16.3.1 |
gstreamer-plugins-good SUSE:Linux Enterprise Server for SAP Applications 12 SP5 | All versions | 1.8.3-16.3.1 |
Products include Debian Debian Linux, Gstreamer Gstreamer, Redhat Enterprise Linux.
How do I fix CVE-2021-3497?
Upgrade to a fixed version.
Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.
Is CVE-2021-3497 being exploited?
There is no known exploitation of CVE-2021-3497 in the wild and no public exploit code.
Other vulnerabilities in Debian Debian Linux
Sources
Also known as ALPINE-CVE-2021-3497, ALSA-2022:7618, CLEANSTART-2026-KE68922, DEBIAN-CVE-2021-3497, DLA-2640-1, GHSA-9gpj-v2gq-r9fx and 4 more.