CVE-2020-27764 Integer overflow in ImageMagick

What is CVE-2020-27764?

CVE-2020-27764 is a low-severity vulnerability in Debian Debian Linux, published on 3 Dec 2020. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.

Official description

In /MagickCore/statistic.c, there are several areas in ApplyEvaluateOperator() where a size_t cast should have been a ssize_t cast, which causes out-of-range values under some circumstances when a crafted input file is processed by ImageMagick. Red Hat Product Security marked this as Low severity because although it could potentially lead to an impact to application availability, no specific impact was shown in this case. This flaw affects ImageMagick versions prior to 6.9.10-69.

Weakness: CWE-190

Which versions are affected by CVE-2020-27764?

It affects 2 products.

Products include Debian Debian Linux, Imagemagick Imagemagick.

How do I fix CVE-2020-27764?

Upgrade to a fixed version.

Is CVE-2020-27764 being exploited?

There is no known exploitation of CVE-2020-27764 in the wild and no public exploit code.

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All Debian Debian Linux vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as DEBIAN-CVE-2020-27764, GHSA-42pf-6wgf-c49g, JLSEC-2026-862, UBUNTU-CVE-2020-27764.