ImageMagick up to 7.0.6-5 enhance.c memory corruption

Summaryinfo

A vulnerability classified as critical was found in ImageMagick up to 7.0.6-5. This vulnerability affects unknown code of the file enhance.c. Such manipulation leads to memory corruption. This vulnerability is uniquely identified as CVE-2017-12876. The attack can be launched remotely. No exploit exists. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in ImageMagick up to 7.0.6-5 (Image Processing Software). It has been rated as critical. Affected by this issue is an unknown function of the file enhance.c. The manipulation with an unknown input leads to a memory corruption vulnerability. Using CWE to declare the problem leads to CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Heap-based buffer overflow in enhance.c in ImageMagick before 7.0.6-6 allows remote attackers to cause a denial of service via a crafted file.

The bug was discovered 08/10/2017. The weakness was disclosed 08/28/2017 (oss-sec). The advisory is shared for download at openwall.com. This vulnerability is handled as CVE-2017-12876 since 08/15/2017. The attack may be launched remotely. No form of authentication is required for exploitation. Successful exploitation requires user interaction by the victim. There are known technical details, but no exploit is available.

The vulnerability was handled as a non-public zero-day exploit for at least 18 days. During that time the estimated underground price was around $0-$5k. The vulnerability scanner Nessus provides a plugin with the ID 104515 (GLSA-201711-07 : ImageMagick: Multiple vulnerabilities), which helps to determine the existence of the flaw in a target environment. It is assigned to the family Gentoo Local Security Checks and running in the context l.

Upgrading to version 7.0.6-6 eliminates this vulnerability. A possible mitigation has been published 3 months after the disclosure of the vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (104515). The entries VDB-105650, VDB-105651, VDB-105652 and VDB-105653 are pretty similar. Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

• Image Processing Software

Name

• ImageMagick

Version

• 7.0.6-5

License

• open-source

Website

• Product: https://www.imagemagick.org/

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• 🔍

CPE 2.2info

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Once again VulDB remains the best source for vulnerability data.

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