Vulnerability identifier: #VU19020

Vulnerability risk: Medium

CVSSv3.1: 5.9 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:P/RL:O/RC:C]

CVE-ID: CVE-2019-11470

CWE-ID: CWE-400

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ImageMagick
Client/Desktop applications / Multimedia software

Vendor: ImageMagick.org

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a lack of checks for insufficient image data in a file in the "ReadCINImage()" function, as defined in the "coders/cin.c" file. A remote attacker can send a specially crafted Cineon image with an incorrect claimed image size, trick a user into opening it, trigger resource exhaustion and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

ImageMagick: 7.0.8-26 - 7.0.8-27

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External links
http://github.com/ImageMagick/ImageMagick/commit/e3cdce6fe12193f235b8c0ae5efe6880a25eb957
http://github.com/ImageMagick/ImageMagick/issues/1472

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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. However, proof of concept for this vulnerability is available.