Heap-based buffer overflow in the exif_entry_fix function (aka the tag fixup routine) in libexif/exif-entry.c in libexif 0.6.18 allows remote attackers to cause a denial of service or possibly execute arbitrary code via an invalid EXIF image. NOTE: some of these details are obtained from third party information.
bugs.debian.org/557137
bugs.gentoo.org/show_bug.cgi?id=293190
libexif.cvs.sourceforge.net/viewvc/libexif/libexif/NEWS?view=markup&pathrev=libexif-0_6_19-release
secunia.com/advisories/37378
sourceforge.net/mailarchive/message.php?msg_name=20091113072359.GA22681%40coneharvesters.com
www.openwall.com/lists/oss-security/2009/11/19/2
www.osvdb.org/59956
www.securityfocus.com/bid/37022
www.vupen.com/english/advisories/2009/3243
exchange.xforce.ibmcloud.com/vulnerabilities/54275