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[USN-8778-1] GStreamer Good Plugins vulnerability

Posted on 17 September 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8778-1
September 17, 2026

gst-plugins-good1.0 vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 26.04 LTS
- Ubuntu 24.04 LTS
- Ubuntu 22.04 LTS
- Ubuntu 20.04 LTS
- Ubuntu 18.04 LTS
- Ubuntu 16.04 LTS

Summary:

GStreamer Good Plugins could be made to consume resources if it received
specially crafted network traffic.

Software Description:
- gst-plugins-good1.0: GStreamer plugins

Details:

It was discovered that GStreamer Good Plugins did not limit the size of
reassembly buffers when processing fragmented RTP packets. A remote
attacker could possibly use this issue to cause GStreamer Good Plugins to
use excessive resources, leading to a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 26.04 LTS
gstreamer1.0-gtk3 1.28.2-2ubuntu0.2
gstreamer1.0-plugins-good 1.28.2-2ubuntu0.2
gstreamer1.0-qt5 1.28.2-2ubuntu0.2
gstreamer1.0-qt6 1.28.2-2ubuntu0.2

Ubuntu 24.04 LTS
gstreamer1.0-gtk3 1.24.2-1ubuntu1.6
gstreamer1.0-plugins-good 1.24.2-1ubuntu1.6
gstreamer1.0-qt5 1.24.2-1ubuntu1.6
gstreamer1.0-qt6 1.24.2-1ubuntu1.6
libgstreamer-plugins-good1.0-0 1.24.2-1ubuntu1.6

Ubuntu 22.04 LTS
gstreamer1.0-gtk3 1.20.3-0ubuntu1.8
gstreamer1.0-plugins-good 1.20.3-0ubuntu1.8
gstreamer1.0-qt5 1.20.3-0ubuntu1.8
libgstreamer-plugins-good1.0-0 1.20.3-0ubuntu1.8

Ubuntu 20.04 LTS
gstreamer1.0-gtk3 1.16.3-0ubuntu1.3+esm2
Available with Ubuntu Pro
gstreamer1.0-plugins-good 1.16.3-0ubuntu1.3+esm2
Available with Ubuntu Pro
gstreamer1.0-qt5 1.16.3-0ubuntu1.3+esm2
Available with Ubuntu Pro
libgstreamer-plugins-good1.0-0 1.16.3-0ubuntu1.3+esm2
Available with Ubuntu Pro

Ubuntu 18.04 LTS
gstreamer1.0-gtk3 1.14.5-0ubuntu1~18.04.3+esm2
Available with Ubuntu Pro
gstreamer1.0-plugins-good 1.14.5-0ubuntu1~18.04.3+esm2
Available with Ubuntu Pro
gstreamer1.0-qt5 1.14.5-0ubuntu1~18.04.3+esm2
Available with Ubuntu Pro
libgstreamer-plugins-good1.0-0 1.14.5-0ubuntu1~18.04.3+esm2
Available with Ubuntu Pro

Ubuntu 16.04 LTS
gstreamer1.0-plugins-good 1.8.3-1ubuntu0.5+esm2
Available with Ubuntu Pro
libgstreamer-plugins-good1.0-0 1.8.3-1ubuntu0.5+esm2
Available with Ubuntu Pro

In general, a standard system update will make all the necessary changes.

References:
https://ubuntu.com/security/notices/USN-8778-1
CVE-2026-18649

Package Information:
https://launchpad.net/ubuntu/+source/gst-plugins-good1.0/1.28.2-2ubuntu0.2
https://launchpad.net/ubuntu/+source/gst-plugins-good1.0/1.24.2-1ubuntu1.6
https://launchpad.net/ubuntu/+source/gst-plugins-good1.0/1.20.3-0ubuntu1.8

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