CVE-2023-53769

Linux Kernel 5.19-6.3.2 - Information Disclosure and Integrity Tampering via SEV-Guest Message Handling

Title source: llm
STIX 2.1

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 (4)

Core 4

Scores

EPSS 0.0011
EPSS Percentile 1.4%

Details

Status published
Products (13)
linux/Kernel 5.19.0 - 6.1.28linux
linux/Kernel 6.2.0 - 6.2.15linux
linux/Kernel 6.3.0 - 6.3.2linux
Linux/Linux < 5.19
Linux/Linux 5.19
Linux/Linux 6.1.28 - 6.1.*
Linux/Linux 6.2.15 - 6.2.*
Linux/Linux 6.3.2 - 6.3.*
Linux/Linux 6.4
Linux/Linux d5af44dde5461d125d1602ac913ab5c6bdf09b8b - 4b69c63f716cfda38e1210e65b68f67f6cee2ddf
... and 3 more
Published Dec 08, 2025
Tracked Since Feb 18, 2026