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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-73434
StatePUBLISHED
Assignerredhat
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-12 20:17:56 UTC
Updated2026-09-09 14:17:14 UTC
DescriptionA 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).

Risk And Classification

Primary CVSS: v3.1 6.1 MEDIUM from [email protected]

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

EPSS: 0.001310000 probability, percentile 0.030420000 (date 2026-09-09)

Problem Types: CWE-125 | CWE-125 Out-of-bounds Read

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
3.1CNACVSS6.1MEDIUMCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
High

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Gstreamer Gstreamer All All All All
Operating System Redhat Enterprise Linux 10.0 All All All
Operating System Redhat Enterprise Linux 7.0 All All All
Operating System Redhat Enterprise Linux 8.0 All All All
Operating System Redhat Enterprise Linux 9.0 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA GStreamer Gst-plugins-good affected 1.28.6 semver Not specified
CNA Red Hat Red Hat Enterprise Linux 10 unaffected 0:1.26.7-2.el10_2.5 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support unaffected 0:1.24.11-1.el10_0.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 8 unaffected 0:1.16.1-7.el8_10.3 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 9 unaffected 0:1.22.12-7.el9_8.4 * rpm Not specified
CNA Red Hat Red Hat Enterprise Linux 7 Not specified Not specified

References

ReferenceSourceLinkTags
access.redhat.com/errata/RHSA-2026:65959 [email protected] access.redhat.com
access.redhat.com/errata/RHSA-2026:55436 [email protected] access.redhat.com Third Party Advisory
gstreamer.freedesktop.org/security/sa-2026-0072.html [email protected] gstreamer.freedesktop.org Patch, Vendor Advisory
access.redhat.com/errata/RHSA-2026:55434 [email protected] access.redhat.com Third Party Advisory
access.redhat.com/security/cve/CVE-2026-73434 [email protected] access.redhat.com Third Party Advisory
access.redhat.com/errata/RHSA-2026:56966 [email protected] access.redhat.com
gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/12231 [email protected] gitlab.freedesktop.org Issue Tracking
bugzilla.redhat.com/show_bug.cgi [email protected] bugzilla.redhat.com Issue Tracking, Third Party Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Red Hat would like to thank Seonwook Kim for reporting this issue. (en)

Additional Advisory Data

SourceTimeEvent
CNA2026-08-12T16:20:06.270ZReported to Red Hat.
CNA2026-08-05T00:00:00.000ZMade public.

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