Vulnerability identifier: #VU61217

Vulnerability risk: Low

CVSSv3.1:

CVE-ID: CVE-2022-22942

CWE-ID: CWE-264

Exploitation vector: Local

Exploit availability: Yes

Vulnerable software:
Linux kernel
Operating systems & Components / Operating system

Vendor: Linux Foundation

Description

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to an error in the vmwgfx driver in Linux kernel. A local unprivileged user can gain access to files opened by other processes on the system through a dangling 'file' pointer.

Exploiting this vulnerability requires an attacker to have access to either /dev/dri/card0 or /dev/dri/rendererD128 and be able to issue an ioctl() on the resulting file descriptor.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

Linux kernel: All versions

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CPE

• cpe:2.3:o:linux_foundation:linux_kernel:*:*:*:*:*:*:*:*

External links
http://www.openwall.com/lists/oss-security/2022/01/27/4
http://www.openwall.com/lists/oss-security/2022/02/03/1
http://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=a0f90c8815706981c483a652a6aefca51a5e191c

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Q & A

Can this vulnerability be exploited remotely?

Is there known malware, which exploits this vulnerability?