| Name | CVE-2026-73434 |
| Description | 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). |
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
The table below lists information on source packages.
| Source Package | Release | Version | Status |
|---|---|---|---|
| gst-plugins-good1.0 (PTS) | bullseye | 1.18.4-2+deb11u2 | vulnerable |
| bullseye (security) | 1.18.4-2+deb11u4 | vulnerable | |
| bookworm | 1.22.0-5+deb12u3 | vulnerable | |
| bookworm (security) | 1.22.0-5+deb12u2 | vulnerable | |
| trixie (security), trixie | 1.26.2-1+deb13u2 | vulnerable | |
| forky, sid | 1.28.6-1 | fixed |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| gst-plugins-good1.0 | source | (unstable) | 1.28.6-1 |
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12241
Fixed by: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/e7532e5fe967f83c865bea3bbbf363a6d80884a0 (1.26.8)
Fixed by: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/6caf1b70cebdcd0fc0bbeb4ba626a5e60c1004a4 (1.26.8)
Fixed by: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/91a9ba7d13ebd5ca4b994e27bb86d900590498e5 (1.26.8)
Fixed by: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/178ce3841f47c14d2acd7fbca153b738eddc488e (1.26.8)
Fixed by: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/9ea9ae4837efc4b105438c4e6c10c2ab2be1b270 (1.26.8)
Fixed by: https://gitlab.freedesktop.org/gstreamer/gstreamer/-/commit/c429d2a33496b54b8e6c00dbf1fdc4e3f52d8481 (1.26.8)
https://gstreamer.freedesktop.org/security/sa-2026-0072.html