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CVE-2026-53701 on CTRL-OS 26.05

Aliases: CVE-2026-53701

Packages: gst_all_1.gst-plugins-bad

Status: Plausible

Advisory Information

An out-of-bounds write vulnerability was found in GStreamer's H.266/VVC PPS picture partition parser in gst-plugins-bad. In the multi-slice-in-tile processing of gst_h266_parser_parse_picture_partition() (gsth266parser.c), the loop iterates without checking that the slice index stays within bounds, writing past three fixed-size arrays (slice_height_in_ctus, slice_top_left_ctu_x, slice_top_left_ctu_y) in the GstH266PPS structure. While the initial proof-of-concept demonstrated a 4-byte out-of-bounds write, the code permits larger writes across multiple iterations. A crafted H.266/VVC media file can trigger this vulnerability.

Updates

2026-07-10 01:29 CEST

Metadata changes:

  • Status for package gst_all_1.gst-plugins-bad: “Plausible”

2026-07-06 23:08 CEST

Metadata changes:

  • Status for package gst_all_1.gst-plugins-bad: “New”