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BSD Weak initial Sequence Number Vulnerability

Solution:
FreeBSD has corrected the problem and released patches for 4.x and 3.x versions.


FreeBSD FreeBSD 3.x

• FreeBSD 3.x tcp-iss-3.x.patch
  # cd /usr/src/sys/netinet# patch -p < /path/to/patch_or_advisory[ Recompile your kernel as described in http://www.freebsd.org/handbook/kernelconfig.html and reboot the system ]
  ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:52/tcp-iss-3.x.pa tch

FreeBSD FreeBSD 4.0

• FreeBSD 4.x tcp-iss.patch
  # cd /usr/src/sys/netinet# patch -p < /path/to/patch_or_advisory[ Recompile your kernel as described in http://www.freebsd.org/handbook/kernelconfig.html and reboot the system ]
  ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:52/tcp-iss.patch

FreeBSD FreeBSD 4.1

• FreeBSD 4.x tcp-iss.patch
  # cd /usr/src/sys/netinet# patch -p < /path/to/patch_or_advisory[ Recompile your kernel as described in http://www.freebsd.org/handbook/kernelconfig.html and reboot the system ]
  ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:52/tcp-iss.patch

FreeBSD FreeBSD 4.1.1

• FreeBSD 4.x tcp-iss.patch
  # cd /usr/src/sys/netinet# patch -p < /path/to/patch_or_advisory[ Recompile your kernel as described in http://www.freebsd.org/handbook/kernelconfig.html and reboot the system ]
  ftp://ftp.freebsd.org/pub/FreeBSD/CERT/patches/SA-00:52/tcp-iss.patch