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[USN-8896-1] GStreamer Ugly Plugins vulnerabilities

Posted on 08 October 2026
Ubuntu Security

==========================================================================Ubuntu Security Notice USN-8896-1
October 07, 2026

gst-plugins-ugly1.0 vulnerabilities
==========================================================================
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:

Several security issues were fixed in GStreamer Ugly Plugins.

Software Description:
- gst-plugins-ugly1.0: GStreamer plugins

Details:

Michael Randrianantenaina discovered that GStreamer's Ugly Plugins
incorrectly handled certain malformed RealMedia files. If a user were
tricked into opening a crafted media file, an attacker could possibly use
this issue to execute arbitrary code. This issue only affected Ubuntu 16.04 LTS,
Ubuntu 18.04 LTS, Ubuntu 20.04 LTS and Ubuntu 22.04 LTS. (CVE-2023-38103,
CVE-2023-38104)

It was discovered that GStreamer's Ugly Plugins incorrectly handled certain
malformed ASF and RealMedia files. If a user were tricked into opening a
crafted media file, an attacker could possibly use this issue to execute
arbitrary code. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS,
Ubuntu 20.04 LTS and Ubuntu 22.04 LTS and Ubuntu 24.04 LTS. (CVE-2026-2920,
CVE-2026-2922)

Tianshuo Han discovered that GStreamer's Ugly Plugins incorrectly handled
certain malformed RealMedia files. If a user were tricked into opening a
crafted media file, an attacker could possibly use this issue to cause a
denial of service or expose sensitive information. (CVE-2026-53703,
CVE-2026-53704)

Seonwook Kim discovered that GStreamer's Ugly Plugins incorrectly handled
certain malformed ASF files. If a user were tricked into opening a crafted
media file, an attacker could possibly use this issue to cause a denial of
service or expose sensitive information. (CVE-2026-19389)

Update instructions:

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

Ubuntu 26.04 LTS
gstreamer1.0-plugins-ugly 1.28.2-1ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 24.04 LTS
gstreamer1.0-plugins-ugly 1.24.1-1ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 22.04 LTS
gstreamer1.0-plugins-ugly 1.20.1-1ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 20.04 LTS
gstreamer1.0-plugins-ugly 1.16.2-2ubuntu0.1~esm1
Available with Ubuntu Pro

Ubuntu 18.04 LTS
gstreamer1.0-plugins-ugly 1.14.5-0ubuntu1~18.04.1+esm1
Available with Ubuntu Pro

Ubuntu 16.04 LTS
gstreamer1.0-plugins-ugly 1.8.3-1ubuntu0.1+esm2
Available with Ubuntu Pro

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

References:
https://ubuntu.com/security/notices/USN-8896-1
CVE-2023-38103, CVE-2023-38104, CVE-2026-19389, CVE-2026-2920,
CVE-2026-2922, CVE-2026-53703, CVE-2026-53704

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