CVE-2022-3523: Linux Kernel Driver memory.c use after free

Vulnerability summary

CVE-2022-3523 is a medium (CVSS 5.3) vulnerability in linux kernel. EPSS estimates a 1.14% chance of exploitation in the next 30 days, higher than 66.5% of scored vulnerabilities.

Timeline

1. 16-10-2022
   PublishedVulnerability first disclosed.
2. 15-04-2025
   Last modifiedVulnerability information updated.

Description

A vulnerability was found in Linux Kernel. It has been classified as problematic. Affected is an unknown function of the file mm/memory.c of the component Driver Handler. The manipulation leads to use after free. It is possible to launch the attack remotely. It is recommended to apply a patch to fix this issue. The identifier of this vulnerability is VDB-211020.

• CWE-119Improper Restriction of Operations within the Bounds of a Memory BufferThe product performs operations on a memory buffer, but it reads from or writes to a memory location outside the buffer's intended boundary.
• CWE-416Use After FreeThe product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.