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Divide By Zero Affecting imagemagick package, versions <8:6.9.11.24+dfsg-1

0.0
medium

Snyk CVSS

    Attack Complexity Low
    User Interaction Required
    Availability High

    Threat Intelligence

    EPSS 0.06% (27th percentile)
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NVD
5.5 medium
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SUSE
7.5 high
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Red Hat
5.5 medium

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  • Snyk ID SNYK-DEBIAN11-IMAGEMAGICK-1045716
  • published 26 Nov 2020
  • disclosed 8 Dec 2020
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Introduced: 26 Nov 2020

CVE-2020-27756 Open this link in a new tab
CWE-369 Open this link in a new tab
CWE-190 Open this link in a new tab

How to fix?

Upgrade Debian:11 imagemagick to version 8:6.9.11.24+dfsg-1 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 Debian. See How to fix? for Debian:11 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.