#VU20059 Permissions, Privileges, and Access Controls in Ghostscript - CVE-2019-10216

Vulnerability identifier: #VU20059

Vulnerability risk: Low

CVSSv4.0: 0.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-10216

CWE-ID: CWE-264

Exploitation vector: Local

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 access arbitrary files on the system.

The vulnerability exists due to an error within the .buildfont1 procedure when making privileged secure calls. A remote attacker can create a specially crafted PostScript file, trick the victim into opening it, bypass the ‘-dSAFER’ restrictions and access arbitrary file on the system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Ghostscript: 9.00 - 9.27

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External links
https://bugs.ghostscript.com/show_bug.cgi?id=701394
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2019-10216

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Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

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