Integer Underflow The advisory has been revoked - it doesn't affect any version of package gstreamer1-plugins-good-gtk (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-GSTREAMER1PLUGINSGOODGTK-18746205
- published13 Aug 2026
- disclosed5 Aug 2026
Introduced: 5 Aug 2026
NewCVE-2026-73433 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream gstreamer1-plugins-good-gtk package and not the gstreamer1-plugins-good-gtk package as distributed by RHEL.
A flaw was found in GStreamer gst-plugins-good (avidemux). When parsing FUJIFILM metadata in an AVI strd chunk, gst_avi_demux_parse_strd() decrements a remaining-length counter by fixed offsets (98 and 10 bytes) without verifying sufficient data remains. For crafted strd payloads of exactly 106 or 107 bytes, the counter underflows to a very large unsigned value, causing subsequent null-terminated string scanning to read far beyond the allocated heap buffer. Date-format normalization may also write beyond the buffer end. Confirmed impacts include heap out-of-bounds read, out-of-bounds write, heap information disclosure (adjacent data appearing in parsed metadata), and application crash/denial of service. The avidemux element is auto-plugged by playbin, decodebin, and gst-discoverer, so opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2514801
- https://access.redhat.com/security/cve/CVE-2026-73433
- https://access.redhat.com/errata/RHSA-2026:55434
- https://access.redhat.com/errata/RHSA-2026:55436
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231
- https://access.redhat.com/errata/RHSA-2026:56966
- https://gstreamer.freedesktop.org/security/sa-2026-0072.html