Vulnerability identifier: #VU6920

Vulnerability risk: Low

CVSSv3.1: 4.6 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-10221

CWE-ID: CWE-121

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
MuPDF
Client/Desktop applications / Multimedia software

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 boundary error within the count_entries() function in pdf-layer.c in MuPDF 1.10a. A remote attacker can create a specially crafted PDF file, trick the victim into opening it and crash, trigger stack overflow and crash the application.

Mitigation
Update to version 1.11-r1.

Vulnerable software versions

MuPDF: 0.5 - 1.10a

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External links
http://bugs.ghostscript.com/show_bug.cgi?id=697400

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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.