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.
CVE-2026-1940
CVSS base score
5.1 (v3.1)
Severity
MEDIUM
Attack vector
Local
Weakness
CWE-125
Last modified
November 5, 2026
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Affected products
freedesktop gst-plugins-good
gstreamer gstreamer
debian debian linux
redhat enterprise linux
References
- access.redhat.com Vendor Advisory
- bugzilla.redhat.com Issue Tracking, Vendor Advisory
- gitlab.freedesktop.org Broken Link
- gstreamer.freedesktop.org Vendor Advisory
- security-tracker.debian.org Third Party Advisory