#VU9800 Resource exhaustion in ImageMagick - CVE-2017-14172

Vulnerability identifier: #VU9800

Vulnerability risk: Low

CVSSv4.0: 2.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2017-14172

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 cause DoS condition on the target system.

The weakness exists in coders/ps.c in ReadPSImage() due to lack of an EOF (End of File) check. A remote attacker can provide a specially crafted PSD file, which claims a large "extent" field in the header but does not contain sufficient backing data, trigger the loop over "length", consume huge CPU resources and cause the application to crash.

Successful exploitation of the vulnerability results in denial of service.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ImageMagick: 7.0.7-0

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External links
https://github.com/ImageMagick/ImageMagick/issues/715

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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.