Vulnerability identifier: #VU45848

Vulnerability risk: Medium

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-16306

CWE-ID: CWE-20

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 perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input in devices/gdevtsep.c. A remote attacker can cause a denial of service via a crafted postscript file.

Mitigation
Install update from vendor's website.

Vulnerable software versions

Ghostscript: 9.50

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External links
http://git.ghostscript.com/?p=ghostpdl.git;a=commitdiff;h=aadb53eb834b3def3ef68d78865ff87a68901804
http://bugs.ghostscript.com/show_bug.cgi?id=701821
http://lists.debian.org/debian-lts-announce/2020/08/msg00032.html

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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.