There is a heap-based buffer over-read in the Exiv2::Jp2Image::readMetadata function of jp2image.cpp in Exiv2 0.26. A Crafted input will lead to a denial of service attack. Product bug: https://bugzilla.redhat.com/show_bug.cgi?id=1494776
Created exiv2 tracking bugs for this issue: Affects: fedora-all [bug 1475370]