CVE-2023-35685
Published: 08 January 2025
Description
In DevmemIntMapPages of devicemem_server.c, there is a possible physical page uaf due to a logic error in the code. This could lead to local escalation of privilege in the kernel with no additional execution privileges needed. User interaction is not needed for exploitation.
Security Summary
CVE-2023-35685 is a vulnerability in the DevmemIntMapPages function of devicemem_server.c, where a logic error in the code can result in a physical page use-after-free (UAF). This issue affects the kernel and is associated with CWE-416.
A local attacker with low privileges (PR:L) can exploit this vulnerability due to its low attack complexity (AC:L) and lack of required user interaction (UI:N). Successful exploitation enables kernel escalation of privilege with no additional execution privileges needed, leading to high impacts on confidentiality, integrity, and availability (C:H/I:H/A:H), as reflected in its CVSS v3.1 base score of 7.8 (AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H).
Mitigation details are available in the advisory published on the Google Issue Tracker at https://issuetracker.google.com/issues/42420027.
Details
- CWE(s)