Karel Kulhavy wrote:
On Tue, Mar 13, 2007 at 04:46:26PM -0600, Theo de Raadt wrote:
This means everyone should have our latest patches installed.

[...]

*Solution/Vendor Information/Workaround*

 The OpenBSD team has released a "security fix" to correct the mbuf
 problem, it is available as a source code patch for OpenBSD 4.0
 and 3.9 here:

 ftp://ftp.openbsd.org/pub/OpenBSD/patches/4.0/common/010_m_dup1.patch

 The patch can also be applied to previous versions of OpenBSD.

Is it possible to fix OpenBSD 4.0 system without compiling anything, by e. g.
somehow rewriting the file that contains the kernel? I have never compiled
OpenBSD, ports etc. and don't have time to study all the theory around OpenBSD - I am sure if I attempt to recompile my system, I could easily screw it up
completely.

I added "block quick inet6" to pf.conf.
I obviously do not use IPv6.

However, you should probably learn how to follow -STABLE or patch your
system. Fire up a test machine on some old hardware. It really is not
that hard if you follow the FAQ and the man pages. The kernel is really
a piece of cake to compile, following config(8).

I may be biased, though. :)

/Alexander

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