Description

The nfs4_proc_lock function in fs/nfs/nfs4proc.c in the NFSv4 client in the Linux kernel before 2.6.31-rc4 allows remote NFS servers to cause a denial of service (NULL pointer dereference and panic) by sending a certain response containing incorrect file attributes, which trigger attempted use of an open file that lacks NFSv4 state.

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=d953126a28f97ec965d23c69fd5795854c048f30

http://lists.opensuse.org/opensuse-security-announce/2009-11/msg00007.html

http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00002.html

http://lists.opensuse.org/opensuse-security-announce/2009-12/msg00005.html

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/37909

http://secunia.com/advisories/38794

http://secunia.com/advisories/38834

http://secunia.com/advisories/40218

http://www.debian.org/security/2010/dsa-2005

http://www.kernel.org/pub/linux/kernel/v2.6/testing/v2.6.31/ChangeLog-2.6.31-rc4

http://www.mandriva.com/security/advisories?name=MDVSA-2009:329

http://www.mandriva.com/security/advisories?name=MDVSA-2011:051

http://www.openwall.com/lists/oss-security/2009/11/05/1

http://www.openwall.com/lists/oss-security/2009/11/05/4

http://www.redhat.com/support/errata/RHSA-2009-1670.html

http://www.redhat.com/support/errata/RHSA-2010-0474.html

http://www.securityfocus.com/bid/36936

http://www.spinics.net/linux/lists/linux-nfs/msg03357.html

http://www.ubuntu.com/usn/usn-864-1

http://www.vupen.com/english/advisories/2010/0528

https://bugzilla.redhat.com/show_bug.cgi?id=529227

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A6636

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9734

Details

Risk Information

CVSS v2