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ALSA-2026:55434 — Moderate: gstreamer1-plugins-good security update

Affected: AlmaLinux:10: gstreamer1-plugins-good, AlmaLinux:10: gstreamer1-plugins-good-gtk

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):

* 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.

EUVD-2026-374173

fkie_cve-2026-73434

A flaw was found in GStreamer gst-plugins-good (avidemux). In gst_avi_demux_riff_parse_vprp(), the number of available gst_riff_vprp_video_field_desc entries is calculated by dividing the remaining buffer size by the attacker-controlled vprp->fields value, rather than by sizeof(gst_riff_vprp_video_field_desc). This can cause the parser to treat more field descriptors as available than fit in the input buffer, resulting in out-of-bounds reads. Processing a crafted AVI via playbin/decodebin can crash the application (denial of service). Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).

GHSA-wfhj-v65x-vjp5

OESA-2026-3481 — gstreamer1-plugins-good security update

Affected: openEuler:22.03-LTS-SP4: gstreamer1-plugins-good

GStreamer is a streaming media framework, based on graphs of filters which operate on media data. Applications using this library can do anything from real-time sound processing to playing videos, and just about anything else media-related. Its plugin-based architecture means that new data types or processing capabilities can be added simply by installing new plugins. Security Fix(es):

A flaw was found in GStreamer's gst-plugins-good. A heap-based out-of-bounds read of 4 bytes can occur when parsing FLAC audio stream headers embedded in a Matroska or WebM container file. The vulnerability is triggered by a boundary check that does not account for the full size of the data being copied, allowing a small read past the end of the allocated buffer. An attacker could exploit this by crafting a malicious Matroska or WebM file and tricking a user into opening it, potentially leaking a small amount of adjacent heap memory.(CVE-2026-17072)

A flaw was found in GStreamer's WavPack audio decoder in gst-plugins-good. When processing a specially crafted WavPack file, an integer overflow in the buffer size calculation (4 * block_samples * channels) in gst_wavpack_dec_handle_frame() causes a very small heap allocation. The WavPack library then writes decoded audio samples far beyond the allocated buffer, resulting in heap memory corruption. This affects both 32-bit and 64-bit systems since the arithmetic is performed in 32-bit integers before promotion to the allocation size…

RHSA-2026:55434 — Red Hat Security Advisory: gstreamer1-plugins-good security update

gstreamer1-plugins-good: gstreamer: unsigned integer underflow in avidemux FUJIFILM strd parsing leading to out-of-bounds read/write gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing

RHSA-2026:65959 — Red Hat Security Advisory: gstreamer1-plugins-good security update

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

RLSA-2026:55434 — Moderate: gstreamer1-plugins-good security update

Affected: Rocky Linux:10: gstreamer1-plugins-good

Security Fix(es):

* 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.

UBUNTU-CVE-2026-73434

Affected: Ubuntu:Pro:16.04:LTS: gst-plugins-good1.0, Ubuntu:Pro:18.04:LTS: gst-plugins-good1.0, Ubuntu:Pro:20.04:LTS: gst-plugins-good1.0, Ubuntu:22.04:LTS: gst-plugins-good1.0, Ubuntu:24.04:LTS: gst-plugins-good1.0, Ubuntu:26.04:LTS: gst-plugins-good1.0

WID-SEC-W-2026-2662 — GStreamer: Mehrere Schwachstellen

Ein Angreifer kann mehrere Schwachstellen in GStreamer ausnutzen, um Daten zu beschädigen, einen Denial-of-Service-Zustand herbeizuführen, vertrauliche Informationen offenzulegen oder möglicherweise beliebigen Code auszuführen.