Out-of-bounds read in macOS - CVE-2021-30939
Published: December 14, 2021 / Updated: February 16, 2022
Vulnerability identifier: #VU58858
CSH Severity: High
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Amber
CVE-ID: CVE-2021-30939
CWE-ID: CWE-125
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vendor: Apple Inc.
Affected software:
macOS
macOS
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a boundary error when processing DDS images in ImageIO. A remote attacker can create a specially crafted image file, trick the victim into opening it using the affected software, trigger out-of-bounds read error and execute arbitrary code on the target system.
How to mitigate CVE-2021-30939
Install updates from vendor's website.