CVE-2026-73434

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).

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 1.8 / Impact : 4.2

Attack Vector LOCAL

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://access.redhat.com/errata/RHSA-2026:55434	Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:55436	Third Party Advisory
https://access.redhat.com/errata/RHSA-2026:56966
https://access.redhat.com/errata/RHSA-2026:65959
https://access.redhat.com/security/cve/CVE-2026-73434	Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=2514807	Issue Tracking Third Party Advisory
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231	Issue Tracking
https://gstreamer.freedesktop.org/security/sa-2026-0072.html	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:gstreamer:gstreamer::::::::
	cpe:2.3:o:redhat:enterprise_linux:7.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:8.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:9.0:::::::*
	cpe:2.3:o:redhat:enterprise_linux:10.0:::::::*

History

No history.

Information

Published : 2026-08-12 20:17

Updated : 2026-09-09 14:17

NVD link : CVE-2026-73434

Mitre link : CVE-2026-73434

CVE.ORG link : CVE-2026-73434

JSON object : View

Products Affected

redhat

enterprise_linux

gstreamer

gstreamer

CWE

CWE-125

Out-of-bounds Read

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Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072)."}], "lastModified": "2026-09-09T14:17:14.003", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:gstreamer:gstreamer:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0CA4B6F3-5F95-469C-97FF-3772FA118BBD", "versionEndExcluding": "1.28.6"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "142AD0DD-4CF3-4D74-9442-459CE3347E3A"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F4CFF558-3C47-480D-A2F0-BABF26042943"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7F6FB57C-2BC7-487C-96DD-132683AEB35D"}, {"criteria": "cpe:2.3:o:redhat:enterprise_linux:10.0:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "D65C2163-CFC2-4ABB-8F4E-CB09CEBD006C"}], "operator": "OR"}]}], "sourceIdentifier": "secalert@redhat.com"}