Command injection in Artifex Ghostscript



Published: 2019-01-23
Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2019-6116
CWE-ID CWE-77
Exploitation vector Network
Public exploit N/A
Vulnerable software
Subscribe 		Ghostscript
Universal components / Libraries / Libraries used by multiple products

Vendor Artifex Software, Inc.

Security Bulletin

This security bulletin contains one low risk vulnerability.

1) Command Injection

EUVDB-ID: #VU17230

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 - Command injection

Exploit availability: No

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

External links

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


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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