Type confusion in Ghostscript - CVE-2018-19134

 

Type confusion in Ghostscript - CVE-2018-19134

Published: December 18, 2018


Vulnerability identifier: #VU16577
CSH Severity: High
CVSS v4.0: 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/E:P/U:Amber
CVE-ID: CVE-2018-19134
CWE-ID: CWE-843
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vendor: Artifex Software, Inc.
Affected software:
Ghostscript

Detailed vulnerability description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to missing type check in line 292 of zcolor.c. A remote unauthenticated attacker can trigger memory corruption and execute code using the "pipe" instruction.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


How to mitigate CVE-2018-19134

Install update from vendor's website.

Sources