A .desktop file in the Debian openjdk-7 package 7u79-2.5.5-1~deb8u1 includes a MIME type registration that is added to /etc/mailcap by mime-support, which allows remote attackers to execute arbitrary code via a JAR file.

It was discovered that the Libraries component did not properly restrict the use of privileged annotations. An untrusted Java application or applet could possibly use this flaw to bypass Java sandbox restrictions.

A denial of service flaw was found in the Murmur hash function implementation, as being used by various Java implementations. A specially-crafted set of keys could trigger Murmur hash function collisions, which degrade hash table items insert performance by changing hash table operations complexity from an expected/average O(n) to the worst case O(n^2). Reporters were able to find colliding strings efficiently using equivalent substrings.

As various web application frameworks for Java automatically pre-fill certain arrays with data from the HTTP request (such as GET or POST parameters) for Java web applications, a remote attacker could use this flaw to make the Java virtual machine to use an excessive amount of CPU time by sending a POST request with a large number parameters which hash to the same value.

A different vulnerability than CVE-2012-2739.

References: [1] http://www.openwall.com/lists/oss-security/2012/11/23/4 [2] http://www.ocert.org/advisories/ocert-2012-001.html [3] http://2012.appsec-forum.ch/conferences/#c17 [4] https://www.131002.net/data/talks/appsec12slides.pdf [5] http://asfws12.files.wordpress.com/2012/11/asfws2012-jeanphilippeaumasson-martinbosslet-hashfloodingdosreloaded.pdf