RHSA-2026:56966 - Security Advisory

Topic

An update for gstreamer1-plugins-good is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

GStreamer is a streaming media framework based on graphs of filters which operate on media data. The gstreamer1-plugins-good packages contain a collection of well-supported plug-ins of good quality and under the LGPL license.

Security Fix(es):

• gst-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay RTP depayloaders (CVE-2026-18649)
• gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading to out-of-bounds read/write (CVE-2026-73433)
• gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing (CVE-2026-73434)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 8 x86_64
• Red Hat Enterprise Linux for IBM z Systems 8 s390x
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat Enterprise Linux for ARM 64 8 aarch64
• Red Hat Enterprise Linux for x86_64 - Extended Life Cycle 8.10 x86_64
• Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle 8.10 aarch64
• Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle 8.10 ppc64le
• Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle 8.10 s390x

Fixes

• BZ - 2510614 - CVE-2026-18649 gst-plugins-good: gst-plugins-good: unbounded memory growth in rtph264depay and rtph265depay RTP depayloaders
• BZ - 2514801 - CVE-2026-73433 gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading to out-of-bounds read/write
• BZ - 2514807 - CVE-2026-73434 gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing

CVEs

• CVE-2026-18649
• CVE-2026-73433
• CVE-2026-73434

References

• https://access.redhat.com/security/updates/classification/#moderate