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OpenAdvisories
Unscored CVE-2020-27756 EUVD-2020-20260GHSA-ghpq-hg85-4p3m

In ParseMetaGeometry() of MagickCore/geometry.c, image height and width calculations can lead to divide-by-zero conditions which also lead …

Published Dec 8, 2020 · Updated Aug 4, 2024 · Assigned by redhat

Description

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.

Affected products

VendorProductAffectedFixed
— ImageMagick prior to 7.0.9-0 —

Fixed in Linux distributions

Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.

ReleasePackageFixed inAdvisory
Debian 14 imagemagick 8:6.9.11.24+dfsg-1 —
Debian 13 imagemagick 8:6.9.11.24+dfsg-1 —
Debian 12 imagemagick 8:6.9.11.24+dfsg-1 —
Debian 10 imagemagick 8:6.9.10.23+dfsg-2.1+deb10u2 DLA-3357-1
ReleasePackageFixed inAdvisory
Ubuntu 20.04 LTS imagemagick 8:6.9.10.23+dfsg-2.1ubuntu11.4 USN-4988-1
Ubuntu 18.04 LTS imagemagick 8:6.9.7.4+dfsg-16ubuntu6.11 USN-4988-1
ReleasePackageFixed inAdvisory
SLES 15 SP2 ImageMagick 7.0.7.34-10.9.1 SUSE-SU-2021:0153-1
SLES 15 SP1 ImageMagick 7.0.7.34-3.90.1 SUSE-SU-2021:0156-1
SLES 15 ImageMagick 7.0.7.34-3.90.1 SUSE-SU-2021:0156-1
Show 8 more (older releases, extended support, other products)
ReleasePackageFixed inAdvisory
SLES for SAP 15 SP1 ImageMagick 7.0.7.34-3.90.1 SUSE-SU-2021:0156-1
SLES for SAP 15 ImageMagick 7.0.7.34-3.90.1 SUSE-SU-2021:0156-1
SLE HPC 15 SP1 ImageMagick 7.0.7.34-3.90.1 SUSE-SU-2021:0156-1
SLE HPC 15 ImageMagick 7.0.7.34-3.90.1 SUSE-SU-2021:0156-1
SUSE Manager Server 4.0 ImageMagick 7.0.7.34-3.90.1 SUSE-SU-2021:0156-1
SUSE Manager Retail Branch Server 4.0 ImageMagick 7.0.7.34-3.90.1 SUSE-SU-2021:0156-1
SUSE Manager Proxy 4.0 ImageMagick 7.0.7.34-3.90.1 SUSE-SU-2021:0156-1
SUSE Enterprise Storage 6 ImageMagick 7.0.7.34-3.90.1 SUSE-SU-2021:0156-1
ReleasePackageFixed inAdvisory
openSUSE Leap 15.2 ImageMagick 7.0.7.34-lp152.12.9.1 openSUSE-SU-2021:0136-1
openSUSE Leap 15.1 ImageMagick 7.0.7.34-lp151.7.26.1 openSUSE-SU-2021:0148-1

Advisories 7

References