#VU21070 Out-of-bounds read in ImageMagick - CVE-2019-13297

Vulnerability identifier: #VU21070

Vulnerability risk: Low

CVSSv4.0: 1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2019-13297

CWE-ID: CWE-125

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 heap-based buffer over-read in AdaptiveThresholdImage in the "MagickCore/threshold.c" file because a height of zero is mishandled. A remote attacker can perform a denial of service attack.

Mitigation
Install update from vendor's website.

Vulnerable software versions

ImageMagick: 7.0.8-50 Q16

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External links
https://github.com/ImageMagick/ImageMagick/commit/604588fc35c7585abb7a9e71f69bb82e4389fefc
https://github.com/ImageMagick/ImageMagick/issues/1609
https://github.com/ImageMagick/ImageMagick6/commit/35c7032723d85eee7318ff6c82f031fa2666b773

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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.