Main Vulnerability Database Vulnerabilities #VU16696

Stack-based buffer overflow in Quick PDF Library - CVE-2018-20247

Published: December 24, 2018 / Updated: May 18, 2020

Vulnerability identifier: #VU16696

CSH Severity: Low

CVSS v4: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2018-20247

CWE-ID: CWE-121

Exploitation vector: Local access

Exploit availability: Public exploit is available

Vulnerability details

The vulnerability allows a local attacker to gain elevated privileges the target system.

The weakness exists due to stack based buffer overflow when handling malicious input. A local attacker can load a malformed or malicious PDF containing a recursive page tree structure using the LoadFromFile, LoadFromString or LoadFromStream functions, trigger memory corruption and cause the service to crash or execute arbitrary code with elevated privileges.

Successful exploitation of the vulnerability may result in system compromise.