CVE-2026-73434

Publication date 12 August 2026

Last updated 1 October 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

6.1 · Medium

Score breakdown

Description

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).

Status

Package Ubuntu Release Status
gst-plugins-good1.0 26.04 LTS resolute
Fixed 1.28.2-2ubuntu0.4
24.04 LTS noble
Fixed 1.24.2-1ubuntu1.8
22.04 LTS jammy
Fixed 1.20.3-0ubuntu1.10
20.04 LTS focal
Fixed 1.16.3-0ubuntu1.3+esm4
18.04 LTS bionic
Fixed 1.14.5-0ubuntu1~18.04.3+esm4
16.04 LTS xenial
Fixed 1.8.3-1ubuntu0.5+esm4

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
gst-plugins-good1.0

Severity score breakdown

CVSS version: CVSS v3.0

Base score 6.1 · Medium

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

References

Related Ubuntu Security Notices (USN)

    • USN-8863-1
    • GStreamer Good Plugins vulnerabilities
    • 1 October 2026

Other references

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