CVE-2026-73434Gstreamer1-plugins-good: gstreamer: out-of-bounds read in avidemux vprp video field descriptor parsing

Beschreibung

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).

Daten: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Wiedergegeben wie in der Quelle, auf Englisch.

Betroffene Produkte und Versionen

Referenzen und Patches

• RHSA-2026:55434 vendor-advisoryThird Party Advisory
• RHSA-2026:55436 vendor-advisoryThird Party Advisory
• RHSA-2026:56966 vendor-advisory
• RHSA-2026:65959 vendor-advisory
• RHSA-2026:68642 vendor-advisory
• RHSA-2026:68644 vendor-advisory
• RHSA-2026:68645 vendor-advisory
• RHSA-2026:69232 vendor-advisory
• RHSA-2026:70264 vendor-advisory
• RHSA-2026:70584 vendor-advisory
• RHSA-2026:70803 vendor-advisory
• https://access.redhat.com/security/cve/CVE-2026-73434 vdb-entryThird Party Advisory
• RHBZ#2514807 issue-trackingIssue TrackingThird Party Advisory
• https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231 Issue Tracking
• https://gstreamer.freedesktop.org/security/sa-2026-0072.html PatchVendor Advisory