PartialWorldBuilds [FreeBSD WIKI]

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Guidance on building only the affected part of the system is no longer included in many of the security advices and errata's. I try to document some that I know of in this article

<callout type="warning">
**Beware!**

Not following the guidance from the Security Advice or Errata Notice can and will result in partially solving issues. This may result in your system remaining vulnerable, data loss. Use only as a temporary fix until you can apply the full advice (usually involving rebuilding and installing world and/or kernel and rebooting).

**This guide does NOT guarantee a properly patched system**
</callout>

In general you must make sure you have your source tree updated via the patches that are linked in the advice/notice or any other method of your preference, see handbook. The commands have been taken from old announce messages.

Added to the install targets is also installing to an ezjail basejail. You'll need to adapt this is you use different methods for running jails.

====== OpenSSL ======
This one is most frequently required.

**Anything that's statically linked will __NOT__ be updated!**

<code bash>
cd /usr/src/secure/lib/libcrypto
make obj && make depend && make includes && make
make install
make DESTDIR=/usr/jails/basejail install
cd /usr/src/secure/lib/libssl
make clean && make depend && make includes && make
make install
make DESTDIR=/usr/jails/basejail install
cd /usr/src/secure/usr.bin/openssl
make clean && make
make install
make DESTDIR=/usr/jails/basejail install
</code>

https://www.freebsd.org/security/advisories/FreeBSD-SA-10:10.openssl.asc
https://www.freebsd.org/security/advisories/FreeBSD-SA-09:08.openssl.asc

====== Sendmail ======

<code bash>
cd /usr/src/lib/libsm
make clean
make obj && make depend && make
cd /usr/src/lib/libsmutil
make clean
make obj && make depend && make
cd /usr/src/usr.sbin/sendmail
make clean
make obj && make depend && make && make install
make DESTDIR=/usr/jails/basejail install
</code>

https://www.freebsd.org/security/advisories/FreeBSD-SA-06:17.sendmail.asc

====== ntp ======

<code bash>
cd /usr/src/usr.sbin/ntp
make clean
make obj && make depend && make
make install
make DESTDIR=/usr/jails/basejail install
</code>

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{{tag>HowTo}}