Red Hat Security Advisory 2012-0670-01 - The kernel-rt packages contain the Linux kernel, the core of any Linux operating system. When a set user ID application is executed, certain personality flags for controlling the application's behavior are cleared. It was found that those flags were not cleared if the application was made privileged via file system capabilities. A local, unprivileged user could use this flaw to change the behavior of such applications, allowing them to bypass intended restrictions. Note that for default installations, no application shipped by Red Hat for Red Hat Enterprise MRG is made privileged via file system capabilities.
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