CVE-2009-2908 Information

Description

The d_delete function in fs/ecryptfs/inode.c in eCryptfs in the Linux kernel 2.6.31 allows local users to cause a denial of service (kernel OOPS) and possibly execute arbitrary code via unspecified vectors that cause a \negative dentry\ and trigger a NULL pointer dereference as demonstrated via a Mutt temporary directory in an eCryptfs mount.

Reference

http://git.kernel.org/?p=linux/kernel/git/stable/linux-2.6.31.y.git;a=commit;h=afc2b6932f48f200736d3e36ad66fee0ec733136 http://lists.vmware.com/pipermail/security-announce/2010/000082.html http://secunia.com/advisories/37075 http://secunia.com/advisories/37105 http://secunia.com/advisories/38794 http://secunia.com/advisories/38834 http://www.openwall.com/lists/oss-security/2009/10/06/1 http://www.securityfocus.com/bid/36639 http://www.ubuntu.com/usn/USN-852-1 http://www.vupen.com/english/advisories/2010/0528 https://bugs.launchpad.net/ecryptfs/+bug/387073 https://bugzilla.redhat.com/show_bug.cgi?id=527534 https://exchange.xforce.ibmcloud.com/vulnerabilities/53693 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A10216 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A6992 https://rhn.redhat.com/errata/RHSA-2009-1548.html https://www.redhat.com/archives/fedora-package-announce/2009-October/msg00483.html