Security Advisory - release version, user or kernel patch level?
steve at sohara.org
Thu Apr 6 09:30:01 UTC 2017
On Thu, 06 Apr 2017 08:35:01 +0000
zhaghzhagh at openmailbox.org wrote:
> Good morning
> Every now and then I get confused by the version number of security
> For example:
> Corrected: 2017-01-26 19:14:14 UTC (stable/11, 11.0-STABLE)
> 2017-02-23 07:11:48 UTC (releng/11.0, 11.0-RELEASE-p8)
> 2017-01-27 07:45:06 UTC (stable/10, 10.3-STABLE)
> 2017-02-23 07:12:18 UTC (releng/10.3, 10.3-RELEASE-p17)
> [user at domain ~]$ uname -a
> FreeBSD domain.tld 10.3-RELEASE-p11 FreeBSD 10.3-RELEASE-p11 #0: Mon Oct
> 24 18:47:18 UTC 2016
> root at amd64-builder.daemonology.net:/usr/obj/usr/src/sys/GENERIC i386
> 1. 'uname' - 'p11' = kernel patch level (?)
> 2. '10.3-RELEASE-p17' - 'p17' = user patch level (?)
Correct - user patch level can be ahead of kernel patch level when
there are updates that don't affect the kernel.
> What if there is a security patch that affects only kernel?
I don't think that's happened (at the very least it will affect src
as well). I would expect both patch levels to bump if it did happen.
> Is it safe in all times to use 'freebsd-version -u' to decide whether my
> host needs to be updated, upon a security notification is issued? (Don't
> want to run 'freebsd-update' unnecessarily.)
Yes it is - or just run freebsd-update fetch periodically, if it
fetches anything then there are patches for your system then you can check
the advisory to see how urgent installation is.
Steve O'Hara-Smith <steve at sohara.org>
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