Candidate: CVE-2007-0004
Description: 
 The NFS client implementation in the kernel in Red Hat Enterprise Linux (RHEL)
 3, when a filesystem is mounted with the noacl option, checks permissions for
 the open system call via vfs_permission (mode bits) data rather than an NFS
 ACCESS call to the server, which allows local client processes to obtain a
 false success status from open calls that the server would deny, and possibly
 obtain sensitive information about file permissions on the server, as
 demonstrated in a root_squash environment. NOTE: it is uncertain whether any
 scenarios involving this issue cross privilege boundaries.
References: 
 https://bugzilla.redhat.com/show_bug.cgi?id=199715
Ubuntu-Description: 
Notes: 
 dannf> Don't know that this bug every affected upstream, but looks like we
        may have introduced it into 2.4.27 w/ 084_ea_acl-2.diff
 dannf> Unknown security implications (though certainly a bug), and RHEL3
        never included the patch in their bugzilla, so ignoring
Bugs: 
upstream: N/A
linux-2.6: N/A
2.6.18-etch-security: N/A
2.6.8-sarge-security: N/A
2.4.27-sarge-security: ignored (2.4.27-10sarge6)
2.6.15-dapper-security: N/A
2.6.17-edgy-security: ignored (EOL)
2.6.20-feisty-security: N/A
2.6.22-gutsy-security: N/A
2.6.24-hardy-security: N/A