ImageMagick 7.0.8-68 there are 4 outside the range of representable values of type 'int' and a signed integer overflow at MagickCore/histogram.c. Reference: https://github.com/ImageMagick/ImageMagick/issues/1750 Upstream patch: https://github.com/ImageMagick/ImageMagick/commit/94691f00839dbdf43edb1508af945ab19b388573
Flaw summary: There are 4 places in HistogramCompare() in MagickCore/histogram.c where an integer overflow is possible during simple math calculations. This occurs in the rgb values and `count` value for a color. The patch uses casts to `ssize_t` type for these calculations, instead of `int`. This flaw could impact application reliability in the event that ImageMagick processes a crafted input file.
Acknowledgments: Name: Suhwan Song (Seoul National University)
Statement: This flaw is out of support scope for Red Hat Enterprise Linux 5, 6, and 7. Inkscape is not affected because it no longer uses a bundled ImageMagick in Red Hat Enterprise Linux 8. For more information regarding support scopes, please see https://access.redhat.com/support/policy/updates/errata .
Created ImageMagick tracking bugs for this issue: Affects: epel-8 [bug 1901229] Affects: fedora-all [bug 1901230]
This bug is now closed. Further updates for individual products will be reflected on the CVE page(s): https://access.redhat.com/security/cve/cve-2020-25666