Vulnerability identifier: #VU52616

Vulnerability risk: Low

CVSSv3.1: 6.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-1834

CWE-ID: CWE-787

Exploitation vector: Local

Exploit availability: No

Vulnerable software:
macOS
Operating systems & Components / Operating system

Vendor: Apple Inc.

Description

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

The vulnerability exists due to a boundary error within the Intel Graphics Driver component. A local user can run a specially create program to trigger an out-of-bounds write and execute arbitrary code on the target system with elevated privileges.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

macOS: 11.0 20A2411 - 11.2.3 20D91, 10.15 19A583 - 10.15.7 19H524, 10.14 18A391 - 10.14.6 18G8022

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External links
http://support.apple.com/en-us/HT212326
http://support.apple.com/en-us/HT212325
http://support.apple.com/en-us/HT212327
http://www.zerodayinitiative.com/advisories/ZDI-21-596/
http://www.zerodayinitiative.com/advisories/ZDI-21-595/

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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.