FreeBSD Errata Notice FreeBSD-EN-15:04.freebsd-update
13 May, 2015 by firstname.lastname@example.org | freebsd
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 ============================================================================= FreeBSD-EN-15:04.freebsd-update Errata Notice The FreeBSD Project Topic: freebsd-update(8) does not ensure the previous upgrade was completed Category: core Module: freebsd-update Announced: 2015-05-13 Credits: Allan Jude Affects: All supported versions of FreeBSD. Corrected: 2015-05-13 22:36:00 UTC (stable/10, 10.1-STABLE) 2015-05-13 22:52:35 UTC (releng/10.1, 10.1-RELEASE-p10) 2015-05-13 22:36:52 UTC (stable/9, 9.3-STABLE) 2015-05-13 22:52:51 UTC (releng/9.3, 9.3-RELEASE-p14) 2015-05-13 22:39:29 UTC (stable/8, 8.4-STABLE) 2015-05-13 22:52:51 UTC (releng/8.4, 8.4-RELEASE-p28) For general information regarding FreeBSD Errata Notices and Security Advisories, including descriptions of the fields above, security branches, and the following sections, please visit <URL:https://security.freebsd.org/>. I. Background The freebsd-update(8) utility is used to apply binary patches to FreeBSD systems installed from official release images, as an alternative to rebuilding from source. A freebsd-update(8) build server generates the signed update packages, consisting of an index of files and directories with checksums before the update, a set of binary patches, and an index of files and directories with checksums after the update. The client downloads the indexes, verifies the signatures and checksums, then downloads and applies the required patches. II. Problem Description Binary upgrades using the freebsd-update(8) utility consist of several invocations of the freebsd-update(8) utility itself. Each invocation performs a different task that depends on the previous invocation being successfully completed. If an upgrade is not thoroughly completed, it is possible for the freebsd-update(8) utility to download a subsequent patchset to a system with an inconsistent userland and/or kernel. In the case of such an incomplete upgrade, the freebsd-update(8) utility may incorrectly evaluate the running userland and/or kernel, which can cause binary patches to be incorrectly applied. In some situations, it is possible for patches to be applied for the incorrect FreeBSD version. III. Impact If incorrect patches are applied to the system as a result of a previous incomplete upgrade, it is possible that some system services may fail to start after rebooting the system, such as if the service is started by an executable that depends on a shared library that has been relocated as part of the upgrade. IV. Workaround No workaround is available, but systems that do not use FreeBSD-provided binary updates to upgrade are not affected. V. Solution Perform one of the following: 1) Upgrade your system to a supported FreeBSD stable or release / security branch (releng) dated after the correction date. 2) To update your present system via a binary patch: Systems running a RELEASE version of FreeBSD on the i386 or amd64 platforms can be updated via the freebsd-update(8) utility: # freebsd-update fetch # freebsd-update install 3) To update your present system via a source code patch: The following patches have been verified to apply to the applicable FreeBSD release branches. a) Download the relevant patch from the location below, and verify the detached PGP signature using your PGP utility. [FreeBSD 9.3 and 10.1] # fetch https://security.FreeBSD.org/patches/EN-15:04/freebsd-update.patch # fetch https://security.FreeBSD.org/patches/EN-15:04/freebsd-update.patch.asc # gpg --verify freebsd-update.patch.asc [FreeBSD 8.4] # fetch https://security.FreeBSD.org/patches/EN-15:04/freebsd-update-8.patch # fetch https://security.FreeBSD.org/patches/EN-15:04/freebsd-update-8.patch.asc # gpg --verify freebsd-update-8.patch.asc b) Apply the patch. Execute the following commands as root: # cd /usr/src # patch < /path/to/patch c) Recompile the operating system using buildworld and installworld as described in <URL:https://www.FreeBSD.org/handbook/makeworld.html>. VI. Correction details The following list contains the correction revision numbers for each affected branch. Branch/path Revision - ------------------------------------------------------------------------- stable/8/ r282872 releng/8.4/ r282874 stable/9/ r282871 releng/9.3/ r282874 stable/10/ r282870 releng/10.1/ r282873 - ------------------------------------------------------------------------- To see which files were modified by a particular revision, run the following command, replacing NNNNNN with the revision number, on a machine with Subversion installed: # svn diff -cNNNNNN --summarize svn://svn.freebsd.org/base Or visit the following URL, replacing NNNNNN with the revision number: <URL:https://svnweb.freebsd.org/base?view=revision&revision=NNNNNN> VII. References <URL:https://bugs.freebsd.org/196760> The latest revision of this Errata Notice is available at https://security.FreeBSD.org/advisories/FreeBSD-EN-15:04.freebsd-update.asc -----BEGIN PGP SIGNATURE----- Version: GnuPG v2.1.2 (FreeBSD) iQIcBAEBCgAGBQJVU9dbAAoJEO1n7NZdz2rnCewQAM51TcFY4IZvSJbSe5RLDGRr 4KsAwkgNW45Z+iUjvg5wnnkXZYau1fadMyQilbrKLk9d0MY1dQlJ7lW0Jkk9q+Oq JhXjanQYvIZKK9eYi0gpVVqp9sN57dpv96ZP+CDiJX9FDow7OPGKmEiJgoavahpb kg5kOywjDEv/DkttLJgHHmEBK41Gad2Jrz16N6k7mlHFSpFmEGRefaqqPqmLdzs0 t0liDFI+fIAYOOKgIDG8Gqe3FCqbhnAf3bmkU/gyJKf1o5vPWowo9O5CvGH+mHPl hmQBD70d+6kkv6ZH5RxMa38Vc3FpZXmaipdObJyoIoOjBw1UqEV6OwS+810xNDCx bwN5q8QP5l/M7SHDO1n/FyP8BVbk6TXVKJ1R+t1bsKd07synL12gVTe0VVm+w0rh +TVdF7cFRWB1Rp3JFw7cGz47ZFv08AaZ3CzdoH9qCEKOTnJnkyW3L4hceTWjkF8H c5gas5Wp3UZeUZ2LT+LcB89W4LSn3Xv3y7AJDsVP9MGHSkjSDGIJKfWiXl/GWHql M/zT6WeraOZyOwNr4F9QFp1hYSxvR+Izh7C0nFefBNf8YID3/hiKYNjxkf5Dz+fN 4A+RVt3COUteAeF5ikPVUiMfJljubingmN5NvTVmKQN6nRm5Pn6rrOouJqf3W0Mh QE8Ps/3y/Sw1e/m45snD =IdxG -----END PGP SIGNATURE----- _______________________________________________ email@example.com mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-announce To unsubscribe, send any mail to "firstname.lastname@example.org"