libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted H.265 bitstream can cause an out-of-bounds array write in `decoder_context::process_reference_picture_set()` (`libde265/decctx.cc:1376`). The root cause is a missing aggregate bound check on predicted short-term reference picture set entries. Individual list sizes are validated, but the combined count after predicted RPS construction can exceed the 16-entry `PocStFoll` array, writing at index 16. Version 1.0.20 patches the issue.
CVSS Details
- CVSS 3.1 Base Score: 7.1
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Amazon_linux_2023 | — | Upgrade libde265-develUpgrade libde265-debugsourceUpgrade libde265-debuginfoUpgrade libde265 | Jul 8, 2026 | Jun 19, 2026 |
| Debian | — | Upgrade libde265 | Aug 9, 2026 | Aug 9, 2026 |
| Ubuntu | — | No solution existsUpgrade libde265-devUpgrade libde265-0Upgrade libde265-0 (Ubuntu Pro)Upgrade libde265-dev (Ubuntu Pro) | Jul 21, 2026 | Jul 20, 2026 |
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