Type confusion in Ghostscript - CVE-2018-15910
Published: August 30, 2018 / Updated: April 22, 2020
Vulnerability identifier: #VU14564
CSH Severity: High
CVSS v4: 9.3 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-15910
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote attacker to execute arbitrary code on the target system.
The vulnerability exists due to the bypass of the -dSAFER option. A remote unauthenticated attacker can submit a specially crafted PostScript file, trigger type confusion in LockDistillerParams parameter and execute arbitrary code with elevated privileges.
Successful exploitation of the vulnerability may result in system compromise.
Affected software
Ghostscript
ghostscript (Alpine package)
Ivanti Connect Secure (formerly Pulse Connect Secure)
ghostscript (Alpine package)
Ivanti Connect Secure (formerly Pulse Connect Secure)
How to mitigate CVE-2018-15910
Install update from vendor's website.
Ivanti Connect Secure (formerly Pulse Connect Secure) - addressed in versions 8.2R12.1, 8.3R7.1, 9.0R3.4
ghostscript (Alpine package) - update to 9.24-r0
ghostscript (Alpine package) - update to 9.24-r0