Linux Kernel vmwgfx Driver Race Condition 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 GEM objects. The issue results from the lack of proper locking when performing operations on an object. An attacker can leverage this vulnerability to disclose information in the context of the kernel.
Additional Details
Linux has issued an update to correct this vulnerability. More details can be found at:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c?h=v6.4-rc1&id=9ef8d83e8e25d5f1811b3a38eb1484f85f64296c
Disclosure Timeline
- 2023-02-08 - Vulnerability reported to vendor
- 2023-05-17 - Coordinated public release of advisory
- 2023-05-26 - Advisory Updated
Credit
Anonymous
