The capabilities implementation in the Linux kernel before 3.14.8 does
not properly consider that namespaces are inapplicable to inodes,
which allows local users to bypass intended chmod restrictions by
first creating a user namespace, as demonstrated by setting the setgid
bit on a file with group ownership of root.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MLIST:[oss-security] 20140610 CVE-2014-4014: Linux kernel user namespace bug
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