DescriptionA NULL pointer dereference was discovered in Exiv2::Image::printIFDStructure in image.cpp in Exiv2 0.26. The vulnerability causes a segmentation fault and application crash, which leads to denial of service.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
NVD severitymedium (attack range: remote)
Debian Bugs888866

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
exiv2 (PTS)wheezy0.23-1fixed
wheezy (security)0.23-1+deb7u2fixed
buster, sid, stretch0.25-3.1fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
exiv2source(unstable)(not affected)


- exiv2 <not-affected> (Vulnerable code introduced after 0.25)
Unreproducible on wheezy/jessie/stretch/sid(0.25-3.1).
Reproducible in experimental(0.26-1) with valgrind (and "free(): invalid next size (fast)" without valgrind).

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