Buffer overflow in macOS - CVE-2021-30737
Published: May 24, 2021 / Updated: June 14, 2021
Vulnerability identifier: #VU53487
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:U/U:Amber
CVE-ID: CVE-2021-30737
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: Apple Inc.
Affected software:
macOS
macOS
Detailed vulnerability description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to a boundary error in the ASN.1 decoder when processing TLS certificates. A remote attacker can trick the victim to visit a specially crafted website, trigger memory corruption with a specially crafted TLS certificate and execute arbitrary code on the system.
How to mitigate CVE-2021-30737
Install updates from vendor's website.