fs/proc/root.c in the procfs implementation in the Linux kernel before
3.2 does not properly interact with CLONE_NEWPID clone system calls,
which allows remote attackers to cause a denial of service (reference
leak and memory consumption) by making many connections to a daemon
that uses PID namespaces to isolate clients, as demonstrated by
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] 20120420 Re: CVE request: pid namespace leak in kernel 3.0 and 3.1
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