The MITRE CVE dictionary describes this issue as:
Integer overflow in the GetEXIFProperty function in magick/property.c in ImageMagick before 6.7.6-4 allows remote attackers to cause a denial of service (out-of-bounds read) via a large component count for certain EXIF tags in a JPEG image. NOTE: this vulnerability exists because of an incomplete fix for CVE-2012-0259.
Not vulnerable. This issue did not affect the versions of ImageMagick as shipped with Red Hat Enterprise Linux 6 as it did not backport the insufficient patch for CVE-2012-0259.
Red Hat security errata
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