CyberRota Analysis
AI-GeneratedA vulnerability exists in GStreamer’s gst-plugins-good, specifically affecting the handling of FUJIFILM metadata in AVI files, which can lead to heap out-of-bounds reads and writes due to improper length validation. This flaw can result in information disclosure and application crashes when processing specially crafted AVI files. Users and organizations utilizing GStreamer for media playback or processing, particularly those using avidemux, should prioritize updating to version 1.28.6 or later to mitigate these risks.
Original NVD Description
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).