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CVE-2026-73434 on CTRL-OS 26.05

Aliases: CVE-2026-73434, CVE-2026-73433

Packages: gst_all_1.gst-plugins-good

Status: Plausible

Advisory Information

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).

Updates

2026-08-24 11:10 CEST

Metadata changes:

  • Status for package gst_all_1.gst-plugins-good: “Plausible”

(Amended on: 2026-08-24 11:19 CEST)

2026-08-24 11:06 CEST

Metadata changes:

  • Status for package gst_all_1.gst-plugins-good: “New”

(Amended on: 2026-08-24 11:08 CEST)