Vulnerability identifier: #VU51688
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:
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 in Graphics drivers within the AppleIntelKBLGraphics kex. A local user can run a specially crafted program to trigger an out-of-bounds write error and execute arbitrary code on the target system with kernel privileges.
Mitigation
Install updates from vendor's website.
Vulnerable software versions
macOS: 11.0 20A2411, 10.15 19A583 - 10.15.7 19H15, 10.14.3 18D43 - 10.14.6 18G6042
External links
http://support.apple.com/en-us/HT212011
http://support.apple.com/en-us/HT211931
http://www.zerodayinitiative.com/advisories/ZDI-21-389/
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.