Vulnerability identifier: #VU6709

Vulnerability risk: Medium

CVSSv3.1: 6.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-7207

CWE-ID: CWE-476

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 perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the mem_get_bits_rectangle() function in base/gdevmem.c in Ghostscript. A remote attacker can create a specially crafted PostScript file, pass it to the affected application and crash it.

Mitigation
Update to version 9.21.

Vulnerable software versions

Ghostscript: 9.20

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External links
http://patchwork.openembedded.org/patch/139337/

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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.