#VU14687 Improper input validation in Ghostscript


Published: 2018-09-06 | Updated: 2018-09-07

Vulnerability identifier: #VU14687

Vulnerability risk: High

CVSSv3.1: 8.3 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2018-16510

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
Ghostscript
Universal components / Libraries / Libraries used by multiple products

Vendor: Artifex Software, Inc.

Description

The vulnerability allows a remote attacker to cause DoS condition or execute arbitrary code on the target system.

The vulnerability exists due to incorrect exec stack handling in the CS and SC PDF operators. A remote unauthenticated attacker can trick the victim into opening a specially crafted PDF file that submits malicious input and cause the affected software to crash or execute arbitrary code with elevated privileges.

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

Mitigation
Update to version 9.24.

Vulnerable software versions

Ghostscript: 9.00 - 9.23


External links
http://git.ghostscript.com/?p=ghostpdl.git;a=commit;h=ea735ba37dc0fd5f5622d031830b9a559dec1cc9


Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.


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