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Vigil@nce - ImageMagick: unreachable memory reading via PNG property.c

November 2014 by Vigil@nce

This bulletin was written by Vigil@nce : http://vigilance.fr/offer

SYNTHESIS OF THE VULNERABILITY

An attacker can create a malicious PNG image, to force a read at
an invalid address in property.c of ImageMagick, in order to
trigger a denial of service.

 Impacted products: MBS, openSUSE, Unix (platform)
 Severity: 2/4
 Creation date: 12/11/2014

DESCRIPTION OF THE VULNERABILITY

The ImageMagick application is used to process images.

However, the magick/property.c file tries to read a memory area
which is not reachable, which triggers a fatal error.

An attacker can therefore create a malicious PNG image, to force a
read at an invalid address in property.c of ImageMagick, in order
to trigger a denial of service.

ACCESS TO THE COMPLETE VIGIL@NCE BULLETIN

http://vigilance.fr/vulnerability/ImageMagick-unreachable-memory-reading-via-PNG-property-c-15627


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