Integer Underflow Affecting gstreamer1-plugins-good-qt6-debuginfo package, versions <0:1.26.7-2.el10_2.5


Severity

Recommended
0.0
medium
0
10

Based on Red Hat Enterprise Linux security rating.

Threat Intelligence

EPSS
0.13% (4th percentile)

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  • Snyk IDSNYK-RHEL10-GSTREAMER1PLUGINSGOODQT6DEBUGINFO-18861683
  • published17 Aug 2026
  • disclosed5 Aug 2026

Introduced: 5 Aug 2026

NewCVE-2026-73433  (opens in a new tab)
CWE-191  (opens in a new tab)

How to fix?

Upgrade RHEL:10 gstreamer1-plugins-good-qt6-debuginfo to version 0:1.26.7-2.el10_2.5 or higher.
This issue was patched in RHSA-2026:55434.

NVD Description

Note: Versions mentioned in the description apply only to the upstream gstreamer1-plugins-good-qt6-debuginfo package and not the gstreamer1-plugins-good-qt6-debuginfo package as distributed by RHEL. See How to fix? for RHEL:10 relevant fixed versions and status.

A flaw was found in GStreamer gst-plugins-good (avidemux). When parsing FUJIFILM metadata in an AVI strd chunk, gst_avi_demux_parse_strd() decrements a remaining-length counter by fixed offsets (98 and 10 bytes) without verifying sufficient data remains. For crafted strd payloads of exactly 106 or 107 bytes, the counter underflows to a very large unsigned value, causing subsequent null-terminated string scanning to read far beyond the allocated heap buffer. Date-format normalization may also write beyond the buffer end. Confirmed impacts include heap out-of-bounds read, out-of-bounds write, heap information disclosure (adjacent data appearing in parsed metadata), and application crash/denial of service. The avidemux element is auto-plugged by playbin, decodebin, and gst-discoverer, so opening or previewing a crafted AVI is sufficient to trigger the issue. Fixed upstream in gst-plugins-good 1.28.6 (GStreamer-SA-2026-0072).

CVSS Base Scores

version 3.1