CVE-2023-1637: linux linux_kernel

Vulnerability summary

CVE-2023-1637 is a medium (CVSS 5.5) vulnerability in linux linux_kernel. EPSS estimates a 0.22% chance of exploitation in the next 30 days, higher than 12.6% of scored vulnerabilities.

Timeline

1. 27-03-2023
   PublishedVulnerability first disclosed.
2. 19-02-2025
   Last modifiedVulnerability information updated.

Description

A flaw that boot CPU could be vulnerable for the speculative execution behavior kind of attacks in the Linux kernel X86 CPU Power management options functionality was found in the way user resuming CPU from suspend-to-RAM. A local user could use this flaw to potentially get unauthorized access to some memory of the CPU similar to the speculative execution behavior kind of attacks.

• CWE-226Sensitive Information in Resource Not Removed Before ReuseThe product releases a resource such as memory or a file so that it can be made available for reuse, but it does not clear or "zeroize" the information contained in the resource before the product performs a critical state transition or makes the resource available for reuse by other entities.
• CWE-212Improper Removal of Sensitive Information Before Storage or TransferThe product stores, transfers, or shares a resource that contains sensitive information, but it does not properly remove that information before the product makes the resource available to unauthorized actors.