Linux Kernel vmwgfx Driver Out-Of-Bounds Read Information Disclosure Vulnerability
Vulnerability Details
This vulnerability allows local attackers to disclose sensitive information on affected installations of Linux Kernel. An attacker must first obtain the ability to execute high-privileged code on the target system in order to exploit this vulnerability.
The specific flaw exists within the handling of vmw fence events. The issue results from the lack of proper validation of user-supplied data, which can result in a read past the end of an allocated data structure. An attacker can leverage this in conjunction with other vulnerabilities to execute arbitrary code in the context of the kernel.
Additional Details
Linux has issued an update to correct this vulnerability. More details can be found at:
https://github.com/torvalds/linux/commit/a37ef7613c00f2d72c8fc08bd83fb6cc76926c8c
Disclosure Timeline
- 2024-04-24 - Vulnerability reported to vendor
- 2024-08-22 - Coordinated public release of advisory
- 2024-08-22 - Advisory Updated
Credit
Berk Cem Goksel of SAFA Team, Kuzey Arda Bulut
