The ecryptfs_write_metadata_to_contents function in the eCryptfs functionality in the Linux kernel 2.6.28 before 2.6.28.9 uses an incorrect size when writing kernel memory to an eCryptfs file header, which triggers an out-of-bounds read and allows local users to obtain portions of kernel memory.
http://rhn.redhat.com/errata/RHSA-2009-0473.html
http://secunia.com/advisories/34422
http://secunia.com/advisories/35015
http://secunia.com/advisories/37471
https://exchange.xforce.ibmcloud.com/vulnerabilities/49355
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11068
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8319
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.28.9
http://www.securitytracker.com/id?1022177
http://www.vmware.com/security/advisories/VMSA-2009-0016.html