On 01/23/2013 12:37 PM, Jakub Hrozek wrote:
[PATCH 1/2] TOOLS: Use openat/unlinkat when removing the homedir
The removal of a home directory is sensitive to concurrent modification
of the directory tree being removed and can unlink files outside the
directory tree.
[PATCH 2/2] TOOLS: Use file descriptor to avoid races when creating a
home directory
When creating a home directory, the destination tree can be modified in
various ways while it is being constructed because directory permissions
are set before populating the directory. This can lead to file creation
and permission changes outside the target directory tree, using hard links.
https://fedorahosted.org/sssd/ticket/1782
This security problem was assigned CVE-2013-0219
Already reviewed during the embargo. Ack.