127 lines
4.5 KiB
Text
127 lines
4.5 KiB
Text
-----BEGIN PGP SIGNED MESSAGE-----
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Hash: SHA512
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=============================================================================
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FreeBSD-EN-15:13.vidcontrol Errata Notice
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The FreeBSD Project
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Topic: Allow size argument to vidcontrol(1) for syscons(4)
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Category: core
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Module: vidcontrol
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Announced: 2015-08-18
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Credits: Ed Maste
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Affects: FreeBSD 10.2-RELEASE
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Corrected: 2015-08-04 15:15:06 UTC (stable/10, 10.2-STABLE)
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2015-08-18 19:30:17 UTC (releng/10.2, 10.2-RC3-p1)
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2015-08-18 19:30:17 UTC (releng/10.2, 10.2-RELEASE-p1)
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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 vidcontrol(1) utility is used to set various options for the syscons(4) or
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vt(4) console driver, such as video mode, colors, cursor shape, screen output
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map, font, and screen saver timeout.
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The vidcontrol(1) utility allows specifying a font size and font file as
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arguments to the '-f' flag. When no size or file are specified, vidcontrol(1)
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the default font will be used.
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II. Problem Description
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The vidcontrol(1) does not properly allow specifying the font size when
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invoked from the command line.
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III. Impact
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The vidcontrol(1) utility will use the default font size, regardless of the
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size specified as an argument to the '-f' flag.
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IV. Workaround
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No workaround is available, but systems not using the vt(4) driver are not
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affected.
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V. Solution
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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.
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2) To update your present 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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3) To update your present 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-15:13/vidcontrol.patch
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# fetch https://security.FreeBSD.org/patches/EN-15:13/vidcontrol.patch.asc
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# gpg --verify vidcontrol.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 your kernel as described in
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<URL:https://www.FreeBSD.org/handbook/kernelconfig.html> and reboot the
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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/ r286291
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releng/10.2/ r286901
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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 Errata Notice is available at
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https://security.FreeBSD.org/advisories/FreeBSD-EN-15:13.vidcontrol.asc
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