CVE-2009-3286 Information

Description

NFSv4 in the Linux kernel 2.6.18 and possibly other versions does not properly clean up an inode when an O_EXCL create fails which causes files to be created with insecure settings such as setuid bits and possibly allows local users to gain privileges related to the execution of the do_open_permission function even when a create fails.

Reference

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=81ac95c5 http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00005.html http://lists.vmware.com/pipermail/security-announce/2010/000082.html http://secunia.com/advisories/37105 http://secunia.com/advisories/38794 http://secunia.com/advisories/38834 http://www.openwall.com/lists/oss-security/2009/09/21/2 http://www.ubuntu.com/usn/USN-852-1 http://www.vupen.com/english/advisories/2010/0528 https://bugzilla.redhat.com/show_bug.cgi?id=524520 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A7527 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A9757 https://rhn.redhat.com/errata/RHSA-2009-1548.html