CVE-2020-27754 Integer overflow in ImageMagick

What is CVE-2020-27754?

CVE-2020-27754 is a low-severity vulnerability in Debian Debian Linux, published on 8 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 IntensityCompare() of /magick/quantize.c, there are calls to PixelPacketIntensity() which could return overflowed values to the caller when ImageMagick processes a crafted input file. To mitigate this, the patch introduces and uses the ConstrainPixelIntensity() function, which forces the pixel intensities to be within the proper bounds in the event of an overflow. This flaw affects ImageMagick versions prior to 6.9.10-69 and 7.0.8-69.

Weakness: CWE-190

Which versions are affected by CVE-2020-27754?

It affects 2 products.

Products include Debian Debian Linux, Imagemagick Imagemagick.

How do I fix CVE-2020-27754?

Apply the vendor's patch.

Is CVE-2020-27754 being exploited?

There is no known exploitation of CVE-2020-27754 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-2020-27754, GHSA-568w-cwq2-w5pj, JLSEC-2026-852, UBUNTU-CVE-2020-27754.