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OpenBSD setitimer(2) Kernel Memory Overwrite Vulnerability

Solution:
OpenBSD has made available source code patches for OpenBSD 3.1 and 3.0.


OpenBSD OpenBSD 3.0

• OpenBSD 032_kerntime.patch
  Apply by doing: cd /usr/src patch -p0 < 032_kerntime.patchAnd then rebuild your kernel.
  ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.0/common/032_kerntime.patc h

OpenBSD OpenBSD 3.1

• OpenBSD 015_kerntime.patch
  Apply by doing: cd /usr/src patch -p0 < 015_kerntime.patchAnd then rebuild your kernel.
  ftp://ftp.openbsd.org/pub/OpenBSD/patches/3.1/common/015_kerntime.patc h