{"id":"CVE-2026-73434","title":"A flaw was found in GStreamer gst-plugins-good (avidemux)","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 …","severity":"medium","cvss":6.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","cwe":["CWE-125"],"vendor":"gstreamer","product":"gstreamer","affected":["gstreamer < 1.28.6","enterprise_linux = 7.0","enterprise_linux = 8.0","enterprise_linux = 9.0","enterprise_linux = 10.0"],"patched":["gstreamer 1.28.6"],"published":"2026-08-12","updated":"2026-09-23","sourceUpdated":"2026-09-23T15:17:17.287","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-73434","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:55434","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:55436","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:56966","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:65959","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:68642","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:68644","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:68645","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:69232","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:70264","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:70584","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:70803","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-73434","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2514807","label":"secalert@redhat.com"},{"url":"https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231","label":"secalert@redhat.com"},{"url":"https://gstreamer.freedesktop.org/security/sa-2026-0072.html","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-73434.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-73434"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-73434"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-08-13T12:27:58.090050Z"},"epss":0.00148,"epssPercentile":0.04402,"ingestedAt":"2026-09-14T13:15:26.659Z","slug":"CVE-2026-73434","body":"## Overview\n\nA 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).\n\n## Affected\n\n- `gstreamer < 1.28.6`\n- `enterprise_linux = 7.0`\n- `enterprise_linux = 8.0`\n- `enterprise_linux = 9.0`\n- `enterprise_linux = 10.0`\n\n## Remediation\n\nUpgrade past the affected range:\n\n- `gstreamer 1.28.6`\n\n## Vendor advisories\n\n- **RHSA-2026:65959** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v. 10.0) · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:65959)\n- **RHSA-2026:55434** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 10) · released 2026-08-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:55434)\n- **RHSA-2026:56966** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 8) · released 2026-08-19 · [advisory](https://access.redhat.com/errata/RHSA-2026:56966)\n- **RHSA-2026:68645** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.2) · released 2026-09-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:68645)\n- **RHSA-2026:55436** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream (v. 9) · released 2026-08-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:55436)\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 7 · no fix planned: Red Hat Enterprise Linux 7 · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-73434.json)\n- **RHSA-2026:68642** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.9.4) · released 2026-09-18 · [advisory](https://access.redhat.com/errata/RHSA-2026:68642)\n- **RHSA-2026:68644** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream EUS (v.9.6) · released 2026-09-17 · [advisory](https://access.redhat.com/errata/RHSA-2026:68644)\n- **RHSA-2026:69232** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream E4S (v.8.8), Red Hat Enterprise Linux AppStream TUS (v.8.8) · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69232)\n- **RHSA-2026:70264** · Red Hat · fixed in: Red Hat Enterprise Linux Server (v. 7 ELS) · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:70264)\n- **RHSA-2026:70803** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.4), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70803)\n- **RHSA-2026:70584** · Red Hat · fixed in: Red Hat Enterprise Linux AppStream AUS (v.8.6), Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70584)","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}