The securelevels implementation in FreeBSD 7.0 and earlier, OpenBSD up
to 3.8, DragonFly up to 1.2, and Linux up to 2.6.15 allows root users
to bypass immutable settings for files by mounting another filesystem
that masks the immutable files while the system is running.
Note:References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
BUGTRAQ:20060109 BSD Securelevels: Circumventing protection of files flagged immutable
FULLDISC:20060109 BSD Securelevels: Circumventing protection of files flagged immutable
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disclosed, or updated in CVE.
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