CVE-2026-73434
Publication date 13 August 2026
Last updated 14 August 2026
Ubuntu priority
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).
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| gst-plugins-good1.0 | 26.04 LTS resolute |
Needs evaluation
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
|
| 16.04 LTS xenial |
Needs evaluation
|
Severity score breakdown
CVSS version: CVSS v3.0
Base score
6.1 · Medium
Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2026-73434
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12241
- https://gstreamer.freedesktop.org/security/sa-2026-0072.html
- https://access.redhat.com/security/cve/CVE-2026-73434
- https://bugzilla.redhat.com/show_bug.cgi?id=2514807