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Integer Overflow or Wraparound Affecting imagemagick package, versions <8:6.9.11.24+dfsg-1

0.0
low

Snyk CVSS

    Attack Complexity Low
    User Interaction Required

    Threat Intelligence

    EPSS 0.08% (33rd percentile)
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NVD
3.3 low
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SUSE
5.3 medium
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Red Hat
3.3 low

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  • Snyk ID SNYK-DEBIAN11-IMAGEMAGICK-1045680
  • published 26 Nov 2020
  • disclosed 8 Dec 2020
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Introduced: 26 Nov 2020

CVE-2020-27754 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 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.