#VU38886 Reachable Assertion in ImageMagick - CVE-2017-9501

Vulnerability identifier: #VU38886

Vulnerability risk: Medium

CVSSv4.0: 4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-9501

CWE-ID: CWE-617

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
ImageMagick
Client/Desktop applications / Multimedia software

Vendor: ImageMagick.org

Description

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

In ImageMagick 7.0.5-7 Q16, an assertion failure was found in the function LockSemaphoreInfo, which allows attackers to cause a denial of service via a crafted file.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ImageMagick: 7.0.5-7

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External links
https://www.securityfocus.com/bid/98943
https://github.com/ImageMagick/ImageMagick/commit/01843366d6a7b96e22ad7bb67f3df7d9fd4d5d74
https://github.com/ImageMagick/ImageMagick/issues/491

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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.