#VU51809 Out-of-bounds write in macOS - CVE-2020-27897 

 

#VU51809 Out-of-bounds write in macOS - CVE-2020-27897

Published: March 31, 2021 / Updated: April 28, 2021


Vulnerability identifier: #VU51809
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2020-27897
CWE-ID: CWE-787
Exploitation vector: Local access
Exploit availability: No public exploit available
Vulnerable software:
macOS
Software 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 handling of numerous IOCTLs in the AppleIntelKBLGraphics kext in Intel Graphics Driver. A local user can run a specially crafted program to  trigger out-of-bounds write and execute arbitrary code on the target system.


Remediation

Install updates from vendor's website.

External links