#VU65365 Out-of-bounds write in virglrenderer - CVE-2022-0135

Vulnerability identifier: #VU65365

Vulnerability risk: Low

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-0135

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
virglrenderer
Client/Desktop applications / Multimedia software

Vendor: virgl

Description

The vulnerability allows a local user to execute arbitrary code on the system.

The vulnerability exists due to a boundary error when processing untrusted input in the VirGL virtual OpenGL renderer. A local user can pass a specially crafted virgil resource and then issue a VIRTGPU_EXECBUFFER ioctl, leading to a denial of service or possible code execution.

Mitigation
Cybersecurity Help is currently unaware of any official solution to address this vulnerability.

Vulnerable software versions

virglrenderer : 0.2.0 - 0.9.1

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External links
https://www.suse.com/support/update/announcement/2022/suse-su-20222395-1/
https://bugzilla.redhat.com/show_bug.cgi?id=2037790

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.