Buffer overflow in ImageMagick

1) Buffer overflow

EUVDB-ID: #VU32200

Risk: High

CVSSv3.1: 7.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2016-4562

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

The vulnerability allows a remote non-authenticated attacker to execute arbitrary code.

The DrawDashPolygon function in MagickCore/draw.c in ImageMagick before 6.9.4-0 and 7.x before 7.0.1-2 mishandles calculations of certain vertices integer data, which allows remote attackers to cause a denial of service (buffer overflow and application crash) or possibly have unspecified other impact via a crafted file.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ImageMagick: 6.9.0-0 - 7.0.1-1

External links

http://www.imagemagick.org/script/changelog.php
http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.html
http://github.com/ImageMagick/ImageMagick/commit/726812fa2fa7ce16bcf58f6e115f65427a1c0950

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.