Vulnerability identifier: #VU17230

Vulnerability risk: Low

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2019-6116

CWE-ID: CWE-77

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 execute arbitrary commands on the target system.

The vulnerability exists due to leak of sensitive operators on the operand stack when a pseudo-operator pushes a subroutine. A remote unauthenticated attacker can supply a specially crafted PostScript file to escape the -dSAFER protection, gain access to the file system and execute arbitrary commands.

Mitigation
Update to version 9.26.

Vulnerable software versions

Ghostscript: 5.50 - 9.25

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External links
http://bugzilla.redhat.com/show_bug.cgi?id=1666636

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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.