#VU6716 Buffer overflow in macOS - CVE-2017-2522
Published: May 25, 2017 / Updated: September 14, 2018
Vulnerability identifier: #VU6716
Vulnerability risk: High
CVSSv4.0: 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-2017-2522
CWE-ID: CWE-120
Exploitation vector: Remote access
Exploit availability:
Public exploit is available
Vulnerable software:
macOS
macOS
Software vendor:
Apple Inc.
Apple Inc.
Description
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The weakness exists due to bad bounds checking in NSCharacterSet coding for NSKeyedUnarchiver when processing malicious data. A remote attacker can send a specially crafted NSArchiver object, trick the victim into opening it, trigger buffer overflow in the CoreFoundation component and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in full system compromise.
The weakness exists due to bad bounds checking in NSCharacterSet coding for NSKeyedUnarchiver when processing malicious data. A remote attacker can send a specially crafted NSArchiver object, trick the victim into opening it, trigger buffer overflow in the CoreFoundation component and execute arbitrary code with privileges of the current user.
Successful exploitation of the vulnerability may result in full system compromise.
Remediation
Update to version 10.12.5.