147 lines
5.9 KiB
Text
147 lines
5.9 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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Hash: SHA512
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=============================================================================
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FreeBSD-EN-18:06.tzdata Errata Notice
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The FreeBSD Project
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Topic: Timezone database information update
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Category: contrib
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Module: zoneinfo
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Announced: 2018-05-08
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Credits: Philip Paeps
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Affects: All supported versions of FreeBSD.
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Corrected: 2018-05-07 06:58:19 UTC (stable/11, 11.2-PRERELEASE)
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2018-05-08 17:18:24 UTC (releng/11.1, 11.1-RELEASE-p10)
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2018-05-07 07:02:26 UTC (stable/10, 10.4-STABLE)
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2018-05-08 17:18:24 UTC (releng/10.4, 10.4-RELEASE-p9)
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For general information regarding FreeBSD Errata Notices and Security
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Advisories, including descriptions of the fields above, security
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branches, and the following sections, please visit
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<URL:https://security.FreeBSD.org/>.
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I. Background
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The tzsetup(8) program allows the user to specify the default local timezone.
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Based on the selected timezone, tzsetup(8) copies one of the files from
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/usr/share/zoneinfo to /etc/localtime. This file actually controls the
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conversion.
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II. Problem Description
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Several changes in Daylight Savings Time happened after previous FreeBSD
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releases were released that would affect many people who live in different
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countries. Because of these changes, the data in the zoneinfo files need to
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be updated, and if the local timezone on the running system is affected,
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tzsetup(8) needs to be run so the /etc/localtime is updated.
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III. Impact
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An incorrect time will be displayed on a system configured to use one of the
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affected timezones if the /usr/share/zoneinfo and /etc/localtime files are
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not updated, and all applications on the system that rely on the system time,
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such as cron(8) and syslog(8), will be affected.
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IV. Workaround
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The system administrator can install an updated timezone database from the
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misc/zoneinfo port and run tzsetup(8) to get the timezone database corrected.
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Applications that store and display times in Coordinated Universal Time (UTC)
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are not affected.
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V. Solution
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Please note that some third party software, for instance PHP, Ruby, Java and
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Perl, may be using different zoneinfo data source, in such cases this
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software must be updated separately. For software packages that is installed
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via binary packages, they can be upgraded by executing `pkg upgrade'.
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Following the instructions in this Errata Notice will update all of the
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zoneinfo files to be the same as what was released with FreeBSD release.
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Perform one of the following:
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1) Upgrade your system to a supported FreeBSD stable or release / security
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branch (releng) dated after the correction date. Restart all the affected
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applications and daemons, or reboot the system.
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2) To update your system via a binary patch:
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Systems running a RELEASE version of FreeBSD on the i386 or amd64
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platforms can be updated via the freebsd-update(8) utility:
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# freebsd-update fetch
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# freebsd-update install
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Restart all the affected applications and daemons, or reboot the system.
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3) To update your system via a source code patch:
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The following patches have been verified to apply to the applicable
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FreeBSD release branches.
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a) Download the relevant patch from the location below, and verify the
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detached PGP signature using your PGP utility.
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# fetch https://security.FreeBSD.org/patches/EN-18:06/tzdata-2018e.patch
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# fetch https://security.FreeBSD.org/patches/EN-18:06/tzdata-2018e.patch.asc
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# gpg --verify tzdata-2018e.patch.asc
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b) Apply the patch. Execute the following commands as root:
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# cd /usr/src
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# patch < /path/to/patch
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c) Recompile the operating system using buildworld and installworld as
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described in <URL:https://www.FreeBSD.org/handbook/makeworld.html>.
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Restart all the affected applications and daemons, or reboot the system.
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VI. Correction details
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The following list contains the correction revision numbers for each
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affected branch.
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Branch/path Revision
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- -------------------------------------------------------------------------
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stable/10/ r333313
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releng/10.4/ r333375
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stable/11/ r333312
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releng/11.1/ r333375
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- -------------------------------------------------------------------------
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To see which files were modified by a particular revision, run the
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following command, replacing NNNNNN with the revision number, on a
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machine with Subversion installed:
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# svn diff -cNNNNNN --summarize svn://svn.freebsd.org/base
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Or visit the following URL, replacing NNNNNN with the revision number:
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<URL:https://svnweb.freebsd.org/base?view=revision&revision=NNNNNN>
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VII. References
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The latest revision of this advisory is available at
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<URL:https://security.FreeBSD.org/advisories/FreeBSD-EN-18:06.tzdata.asc>
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