CVE-2009-4141 Information

Description

Use-after-free vulnerability in the fasync_helper function in fs/fcntl.c in the Linux kernel before 2.6.33-rc4-git1 allows local users to gain privileges via vectors that include enabling O_ASYNC (aka FASYNC or FIOASYNC) on a locked file and then closing this file.

Reference

http://archives.neohapsis.com/archives/fulldisclosure/2010-01/0252.html http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=53281b6d34d44308372d16acb7fb5327609f68b6 http://lists.opensuse.org/opensuse-security-announce/2010-02/msg00002.html http://lock.cmpxchg8b.com/5ebe2294ecd0e0f08eab7690d2a6ee69/create_elf_tables.c http://secunia.com/advisories/38199 http://secunia.com/advisories/39033 http://support.avaya.com/css/P8/documents/100073666 http://twitter.com/taviso/statuses/7744108017 http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.33-rc4-git1.bz2 http://www.redhat.com/support/errata/RHSA-2010-0161.html http://www.securityfocus.com/bid/37806 https://bugzilla.redhat.com/show_bug.cgi?id=547906 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A7054 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A9201 https://rhn.redhat.com/errata/RHSA-2010-0046.html https://rhn.redhat.com/errata/RHSA-2010-0095.html