CVE-2007-0004

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.

Score

CVSS 2.0 1.9 Low

Status

Modified - secalert@redhat.com

Published

2007-09-18

Last modified

2024-09-16

Weaknesses

CWE-264

Affected products

• Enterprise Linux (Redhat)

References

• https://bugzilla.redhat.com/show_bug.cgi?id=199715