Description
A flaw was found in GStreamer gst-plugins-good (avidemux). In the superindex and subindex parsers, integer overflow can bypass bounds checks and cause out-of-bounds reads. Because avidemux is auto-plugged by playbin, decodebin, and gst-discoverer, 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).
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| GStreamer | gst-plugins-good | < 1.28.6 | 1.28.6 |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gst-plugins-good1.0 | 1.28.6-1 | — |
| Debian 13 | gst-plugins-good1.0 | No fix yet | — |
| Debian 12 | gst-plugins-good1.0 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | gst-plugins-good1.0 | No fix yet | — |
| Ubuntu 24.04 LTS | gst-plugins-good1.0 | No fix yet | — |
| Ubuntu 22.04 LTS | gst-plugins-good1.0 | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | gst-plugins-good1.0 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | gst-plugins-good1.0 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | gst-plugins-good1.0 | No fix yet | — |
Advisories 1
- WID-SEC-2026-2662 GStreamer: Mehrere Schwachstellen BSI CERT-Bund (WID) · Nov 5, 2026