Divide By Zero Affecting imagemagick package, versions <8:6.9.10.23+dfsg-2.1ubuntu11.4


Severity

Recommended
low

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.06% (30th percentile)

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  • Snyk IDSNYK-UBUNTU2004-IMAGEMAGICK-1134007
  • published11 Jun 2021
  • disclosed8 Dec 2020

Introduced: 8 Dec 2020

CVE-2020-27756  (opens in a new tab)
CWE-369  (opens in a new tab)
CWE-190  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.04 imagemagick to version 8:6.9.10.23+dfsg-2.1ubuntu11.4 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream imagemagick package and not the imagemagick package as distributed by Ubuntu. See How to fix? for Ubuntu:20.04 relevant fixed versions and status.

In ParseMetaGeometry() of MagickCore/geometry.c, image height and width calculations can lead to divide-by-zero conditions which also lead to undefined behavior. This flaw can be triggered by a crafted input file processed by ImageMagick and could impact application availability. The patch uses multiplication in addition to the function PerceptibleReciprocal() in order to prevent such divide-by-zero conditions. This flaw affects ImageMagick versions prior to 7.0.9-0.

CVSS Scores

version 3.1