CVEvulnerability
CVE-2023-53769
9.3 CRITICAL
Official page ↗
- Status
- Deferred
- Published
- 2025-12-08
- Last modified
- 2026-08-04
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 9.3 CRITICAL — CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
virt/coco/sev-guest: Double-buffer messages
The encryption algorithms read and write directly to shared unencrypted
memory, which may leak information as well as permit the host to tamper
with the message integrity. Instead, copy whole messages in or out as
needed before doing any computation on them.
References
- https://git.kernel.org/stable/c/4b69c63f716cfda38e1210e65b68f67f6cee2ddf git.kernel.org
- https://git.kernel.org/stable/c/577a64725bfd77645986168e953d405067ee565b git.kernel.org
- https://git.kernel.org/stable/c/965006103a14703cc42043bbf9b5e0cdf7a468ad git.kernel.org
- https://git.kernel.org/stable/c/c27dafc4aa50a29ec927b3aa84ac7b430071f682 git.kernel.org