The create_user_ns function in kernel/user_namespace.c in the Linux kernel before 3.8.6 does not check whether a chroot directory exists that differs from the namespace root directory, which allows local users to bypass intended filesystem restrictions via a crafted clone system call.
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Status: PUBLISHED
Assigner: redhat
Published: 2013-04-24T19:00:00Z
Updated: 2024-08-06T15:20:37.306Z
Reserved: 2013-02-19T00:00:00Z
Link: CVE-2013-1956

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Status : Deferred
Published: 2013-04-24T19:55:01.003
Modified: 2025-04-11T00:51:21.963
Link: CVE-2013-1956

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