CVE-2012-0498

Vulnerabilidad no especificada en el Java Runtime Environment (JRE), componente de Oracle Java SE 7 y versiones anteriores de actualizaciones 2, 6 Update 30 y anteriores, y 5.0 Update 33 y anteriores permite a atacantes remotos afectar la confidencialidad, integridad y disponibilidad a través de vectores desconocidos relacionados con el 2D

This vulnerability allows remote attackers to execute arbitrary code on vulnerable installations of Oracle Java. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file.
The specific flaw exists within cmm.dll. While parsing multi-function a to b curve data the size of an allocation is calculated based on user supplied data. It is possible to cause an integer wrap on the nTblSize variable. This variable is later used to allocate an heap buffer which will be smaller than necessary resulting in heap memory corruption. This can lead to remote code execution under the context of the current user.

This update corrects several security vulnerabilities in the IBM Java Runtime Environment shipped as part of Red Hat Network Satellite Server 5.4. In a typical operating environment, these are of low security risk as the runtime is not used on untrusted applets. Several flaws were fixed in the IBM Java 2 Runtime Environment.