Security-Enhanced Linux provides a locked down OS

    Date13 Feb 2004
    4473
    Posted ByAnthony Pell
    Normal Linux system security relies on the kernel and the dependencies created through the setuid/setgid binaries. Under the conventional security mechanism, an exploit of a flaw with any privileged application, configuration, or process running usually leads to a total system compromise. This problem is consistent with most modern operating systems due to their complexity and interoperability with other applications. . . . Normal Linux system security relies on the kernel and the dependencies created through the setuid/setgid binaries. Under the conventional security mechanism, an exploit of a flaw with any privileged application, configuration, or process running usually leads to a total system compromise. This problem is consistent with most modern operating systems due to their complexity and interoperability with other applications.

    SELinux relies solely on the kernel and the security configuration policy. Once you configure the security system correctly, improper application configuration or exploits of flawed applications and daemons will only result in compromising the user program and its system daemons. The security of other user programs and daemons remains intact, along with the underlying security system structure.

    In simpler terms: No single application configuration flaw or exploit can result in a total system compromise.

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