release/doc/en_US.ISO8859-1/errata/article.xml

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   9 <article xmlns="http://docbook.org/ns/docbook"
  10   xmlns:xlink="http://www.w3.org/1999/xlink" version="5.0">
  11
  12   <info>
  13     <title>&os; &release.prev; Errata </title>
  14
  15     <author><orgname>The &os; Project</orgname></author>
  16
  17     <pubdate>$FreeBSD$</pubdate>
  18
  19     <copyright>
  20       <year>2014</year>
  21
  22       <holder role="mailto:doc@FreeBSD.org">The &os; Documentation
  23         Project</holder>
  24     </copyright>
  25
  26     <legalnotice xml:id="trademarks" role="trademarks">
  27       &tm-attrib.freebsd;
  28       &tm-attrib.intel;
  29       &tm-attrib.sparc;
  30       &tm-attrib.general;
  31     </legalnotice>
  32
  33     <abstract>
  34       <para>This document lists errata items for &os; &release.prev;,
  35         containing significant information discovered after the
  36         release or too late in the release cycle to be otherwise
  37         included in the release documentation.  This information
  38         includes security advisories, as well as news relating to the
  39         software or documentation that could affect its operation or
  40         usability.  An up-to-date version of this document should
  41         always be consulted before installing this version of
  42         &os;.</para>
  43
  44       <para>This errata document for &os; &release.prev; will be
  45         maintained until the release of &os; &release.next;.</para>
  46     </abstract>
  47   </info>
  48
  49   <sect1 xml:id="intro">
  50     <title>Introduction</title>
  51
  52     <para>This errata document contains <quote>late-breaking
  53         news</quote> about &os; &release.prev; Before installing this
  54       version, it is important to consult this document to learn about
  55       any post-release discoveries or problems that may already have
  56       been found and fixed.</para>
  57
  58     <para>Any version of this errata document actually distributed
  59       with the release (for example, on a CDROM distribution) will be
  60       out of date by definition, but other copies are kept updated on
  61       the Internet and should be consulted as the <quote>current
  62         errata</quote> for this release.  These other copies of the
  63       errata are located at <link
  64         xlink:href="http://www.FreeBSD.org/releases/" />, plus any
  65       sites which keep up-to-date mirrors of this location.</para>
  66
  67     <para>Source and binary snapshots of &os; &release.branch; also
  68       contain up-to-date copies of this document (as of the time of
  69       the snapshot).</para>
  70
  71     <para>For a list of all &os; CERT security advisories, see <link
  72         xlink:href="http://www.FreeBSD.org/security/"/> or <link
  73       xlink:href="ftp://ftp.FreeBSD.org/pub/FreeBSD/CERT/"/>.</para>
  74   </sect1>
  75
  76   <sect1 xml:id="security">
  77     <title>Security Advisories</title>
  78
  79     <informaltable frame="none" pgwide="0">
  80       <tgroup cols="3">
  81         <colspec colwidth="1*" />
  82         <colspec colwidth="1*" />
  83         <colspec colwidth="3*" />
  84         <thead>
  85           <row>
  86             <entry>Advisory</entry>
  87             <entry>Date</entry>
  88             <entry>Topic</entry>
  89           </row>
  90         </thead>
  91
  92         <tbody>
  93           <row>
  94             <entry><link xlink:href="http://www.freebsd.org/security/advisories/FreeBSD-SA-14:27.stdio.asc">SA-14:27.stdio</link></entry>
  95             <entry>10&nbsp;December&nbsp;2014</entry>
  96             <entry><para>Buffer overflow in stdio</para></entry>
  97           </row>
  98
  99           <row>
 100             <entry><link xlink:href="http://www.freebsd.org/security/advisories/FreeBSD-SA-14:28.file.asc">SA-14:28.file</link></entry>
 101             <entry>10&nbsp;December&nbsp;2014</entry>
 102             <entry><para>Multiple vulnerabilities in &man.file.1; and
 103                 &man.libmagic.3;</para></entry>
 104           </row>
 105
 106           <row>
 107             <entry><link xlink:href="http://www.freebsd.org/security/advisories/FreeBSD-SA-14:30.unbound.asc">SA-14:30.unbound</link></entry>
 108             <entry>17&nbsp;December&nbsp;2014</entry>
 109             <entry><para>Remote denial of service
 110                 vulnerability</para></entry>
 111           </row>
 112
 113           <row>
 114             <entry><link xlink:href="http://www.freebsd.org/security/advisories/FreeBSD-SA-14:31.ntp.asc">SA-14:31.ntp</link></entry>
 115             <entry>23&nbsp;December&nbsp;2014</entry>
 116             <entry><para>Multiple vulnerabilities</para></entry>
 117           </row>
 118         </tbody>
 119       </tgroup>
 120     </informaltable>
 121   </sect1>
 122
 123   <sect1 xml:id="open-issues">
 124     <title>Open Issues</title>
 125
 126     <itemizedlist>
 127       <listitem>
 128         <para>&os;/&arch.i386; &release.prev; running as a guest
 129           operating system on <application>VirtualBox</application>
 130           can have a problem with disk I/O access.  It depends on some
 131           specific hardware configuration and does not depend on a
 132           specific version of <application>VirtualBox</application> or
 133           host operating system.</para>
 134
 135         <para>It causes various errors and makes &os; quite unstable.
 136           Although the cause is still unclear, disabling unmapped I/O
 137           works as a workaround.  To disable it, choose
 138           <literal>Escape to loader prompt</literal> in the boot menu
 139           and enter the following lines from &man.loader.8; prompt,
 140           after an <literal>OK</literal>:</para>
 141
 142         <screen>set vfs.unmapped_buf_allowed=0
 143 boot</screen>
 144
 145         <para>Note that the following line has to be added to
 146           <filename>/boot/loader.conf</filename> after a boot.  It
 147           disables unmapped I/O at every boot:</para>
 148
 149         <programlisting>vfs.unmapped_buf_allowed=0</programlisting>
 150
 151         <para>[2014-04-03 update]  It has been reported that
 152           instability may be present on virtual machines running
 153           on other hypervisors, such as Xen or KVM.</para>
 154       </listitem>
 155     </itemizedlist>
 156   </sect1>
 157
 158   <sect1 xml:id="late-news">
 159     <title>Late-Breaking News</title>
 160
 161     <para>No news.</para>
 162   </sect1>
 163 </article>