CVE-2026-73434
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Summary
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).
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| GStreamer | gst-plugins-good | 0 < 1.28.6 | affected |
Weaknesses
- CWE-125: Out-of-bounds Read
References
- https://access.redhat.com/security/cve/CVE-2026-73434
- https://bugzilla.redhat.com/show_bug.cgi?id=2514807
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231
- https://gstreamer.freedesktop.org/security/sa-2026-0072.html
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