Denial of Service via PID Namespace Reference Leak in Linux Kernel

CVE-2012-2127 · MEDIUM Severity

AV:N/AC:L/AU:N/C:N/I:N/A:P

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 vsftpd.

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