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Out-of-bounds Write Affecting imagemagick package, versions *

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
6.1 medium
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SUSE
8.2 high
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Red Hat
6.1 medium

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  • Snyk ID SNYK-UBUNTU1804-IMAGEMAGICK-1056714
  • published 8 Jan 2021
  • disclosed 8 Dec 2020
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Introduced: 8 Dec 2020

CVE-2020-25664 Open this link in a new tab
CWE-787 Open this link in a new tab
CWE-122 Open this link in a new tab

How to fix?

There is no fixed version for Ubuntu:18.04 imagemagick.

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:18.04 relevant fixed versions and status.

In WriteOnePNGImage() of the PNG coder at coders/png.c, an improper call to AcquireVirtualMemory() and memset() allows for an out-of-bounds write later when PopShortPixel() from MagickCore/quantum-private.h is called. The patch fixes the calls by adding 256 to rowbytes. An attacker who is able to supply a specially crafted image could affect availability with a low impact to data integrity. This flaw affects ImageMagick versions prior to 6.9.10-68 and 7.0.8-68.