medium5.1
CVE-2026-1940
An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function.
Impact
An incomplete fix for CVE-2024-47778 allows an out-of-bounds read in gst_wavparse_adtl_chunk() function. The patch added a size validation check lsize + 8 > size, but it does not account for the GST_ROUND_UP_2(lsize) used in the actual offset calculation. When lsize is an odd number, the parser advances more bytes than validated, causing OOB read.
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Freedesktop | Gst-Plugins-Good | Version 1.0.0 |
| Gstreamer | Gstreamer | before 1.28.1 |
| Debian | Debian Linux | Versions 11.0, 12.0 |
| Redhat | Enterprise Linux | Versions 7.0, 8.0, 9.0, 10.0 |
Weakness classification
References
- NVD record
- CVE.org record
- https://access.redhat.com/security/cve/CVE-2026-1940
- https://bugzilla.redhat.com/show_bug.cgi?id=2436932
- https://gitlab.freedesktop.org/gstreamer/gstreamer/-/issues/4854
- https://gstreamer.freedesktop.org/security/sa-2026-0001.html
- https://security-tracker.debian.org/tracker/CVE-2026-1940