The IcedTea-Web plugin before 1.2.3 and 1.3.x before 1.3.2 allows remote attackers to execute arbitrary code via a crafted file that validates as both a GIF and a Java JAR file, aka "GIFAR."
https://wiki.mageia.org/en/Support/Advisories/MGASA-2013-0123
https://exchange.xforce.ibmcloud.com/vulnerabilities/83640
https://bugzilla.redhat.com/show_bug.cgi?id=884705
http://www.ubuntu.com/usn/USN-1804-1
http://www.securityfocus.com/bid/59286
http://www.mandriva.com/security/advisories?name=MDVSA-2013:146
http://secunia.com/advisories/53117
http://secunia.com/advisories/53109
http://rhn.redhat.com/errata/RHSA-2013-0753.html
http://mail.openjdk.java.net/pipermail/distro-pkg-dev/2013-April/022790.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00101.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00034.html
http://lists.opensuse.org/opensuse-updates/2013-06/msg00030.html
http://lists.opensuse.org/opensuse-updates/2013-05/msg00032.html
http://lists.opensuse.org/opensuse-updates/2013-05/msg00003.html
http://lists.opensuse.org/opensuse-updates/2013-04/msg00106.html
http://lists.opensuse.org/opensuse-security-announce/2013-07/msg00013.html
http://lists.opensuse.org/opensuse-security-announce/2013-05/msg00020.html
http://icedtea.classpath.org/hg/release/icedtea-web-1.3/rev/19f5282f53e8
http://icedtea.classpath.org/hg/release/icedtea-web-1.2/rev/cb58b31c450e
http://icedtea.classpath.org/hg/release/icedtea-web-1.2/file/icedtea-web-1.2.3/NEWS