CVE-2007-3843 Information

Description

The Linux kernel before 2.6.23-rc1 checks the wrong global variable for the CIFS sec mount option which might allow remote attackers to spoof CIFS network traffic that the client configured for security signatures as demonstrated by lack of signing despite sec=ntlmv2i in a SetupAndX request.

Reference

http://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=246595 http://kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.23-rc1 http://lists.opensuse.org/opensuse-security-announce/2007-12/msg00001.html http://lists.opensuse.org/opensuse-security-announce/2008-02/msg00002.html http://secunia.com/advisories/26366 http://secunia.com/advisories/26647 http://secunia.com/advisories/26760 http://secunia.com/advisories/27436 http://secunia.com/advisories/27747 http://secunia.com/advisories/27912 http://secunia.com/advisories/28806 http://support.avaya.com/elmodocs2/security/ASA-2007-474.htm http://www.debian.org/security/2007/dsa-1363 http://www.redhat.com/support/errata/RHSA-2007-0705.html http://www.redhat.com/support/errata/RHSA-2007-0939.html http://www.securityfocus.com/bid/25244 http://www.ubuntu.com/usn/usn-510-1 https://oval.cisecurity.org/repository/search/definition/oval3Aorg.mitre.oval3Adef3A9670