CVE-2023-53769 — virt/coco/sev-guest: Double-buffer messages
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 une…
Published: 2025-12-08 · CVSS: 9.3 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7