CVE-2023-53769

CriticalCVSS 9.3/10Last modified Aug 4, 2026

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.

Metrics

CVSS 3.1 9.3/10CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Affected software

No affected versions have been published.

Timeline

Published: Dec 8, 2025
Last modified: Aug 4, 2026
NVD status: Deferred

Related CVEs from 2023

CVE-2023-53777.1Out-of-bounds Read in GitHub repository gpac/gpac prior to v2.2.2-DEV.CVE-2023-537707.5MiniDVBLinux 5.4 contains an unauthenticated configuration download vulnerability that allows remote attackers to access sensitive system co CVE-2023-537719.8MiniDVBLinux 5.4 contains an authentication bypass vulnerability that allows remote attackers to change the root password without authentica CVE-2023-537727.5MiniDVBLinux 5.4 contains an arbitrary file disclosure vulnerability that allows attackers to read sensitive system files through the 'file'CVE-2023-537735.3MiniDVBLinux 5.4 contains an unauthenticated vulnerability in the tv_action.sh script that allows remote attackers to generate live stream s CVE-2023-537749.8MiniDVBLinux 5.4 contains a remote code execution vulnerability in the SVDRP protocol that allows remote attackers to send commands to manip CVE-2023-537756.5Screen SFT DAB 1.9.3 contains an authentication bypass vulnerability that allows attackers to change user passwords by exploiting weak sessi CVE-2023-537768.8Screen SFT DAB 1.9.3 contains an authentication bypass vulnerability that allows attackers to exploit weak session management by reusing IP-CVE-2023-53777In the Linux kernel, the following vulnerability has been resolved: erofs: kill hooked chains to avoid loops on deduplicated compressed ima CVE-2023-537787.8In the Linux kernel, the following vulnerability has been resolved: accel/qaic: Clean up integer overflow checking in map_user_pages() The CVE-2023-53785.4Improper Input Validation vulnerability in MegaBIP and already unsupported SmodBIP software allows for Stored XSS.This issue affects SmodBI CVE-2023-53780In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: fix FCLK pstate change underflow [Why] Currently we s