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12 g2boojum 1.1 <title>GLEP 14 -- security updates based on GLSA</title>
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25 g2boojum 1.4 [<b><a href="./glep-0014.txt">GLEP Source</a></b>]
26 g2boojum 1.1 </td></tr></table>
27     <div class="document">
28     <table class="rfc2822 field-list" frame="void" rules="none">
29     <col class="field-name" />
30     <col class="field-body" />
31     <tbody valign="top">
32     <tr class="field"><th class="field-name">GLEP:</th><td class="field-body">14</td>
33     </tr>
34     <tr class="field"><th class="field-name">Title:</th><td class="field-body">security updates based on GLSA</td>
35     </tr>
36 g2boojum 1.3 <tr class="field"><th class="field-name">Version:</th><td class="field-body">1.4</td>
37 g2boojum 1.1 </tr>
38 g2boojum 1.4 <tr class="field"><th class="field-name">Last-Modified:</th><td class="field-body"><a class="reference" href="http://www.gentoo.org/cgi-bin/viewcvs/xml/htdocs/proj/en/glep/glep-0014.txt?cvsroot=gentoo">2003/11/10 19:21:57</a></td>
39 g2boojum 1.1 </tr>
40     <tr class="field"><th class="field-name">Author:</th><td class="field-body">Marius Mauch &lt;genone&#32;&#97;t&#32;genone.de&gt;,</td>
41     </tr>
42 g2boojum 1.3 <tr class="field"><th class="field-name">Status:</th><td class="field-body">Accepted</td>
43 g2boojum 1.1 </tr>
44     <tr class="field"><th class="field-name">Type:</th><td class="field-body">Standards Track</td>
45     </tr>
46 g2boojum 1.4 <tr class="field"><th class="field-name">Content-Type:</th><td class="field-body"><a class="reference" href="glep-0012.html">text/x-rst</a></td>
47 g2boojum 1.1 </tr>
48     <tr class="field"><th class="field-name">Created:</th><td class="field-body">18 Aug 2003</td>
49     </tr>
50 g2boojum 1.4 <tr class="field"><th class="field-name">Post-History:</th><td class="field-body">22-Aug-2003, 24-Aug-2003, 10-Nov-2003, 25-Oct-2004</td>
51 g2boojum 1.1 </tr>
52     </tbody>
53     </table>
54     <hr />
55     <div class="contents topic" id="contents">
56 g2boojum 1.4 <p class="topic-title first"><a name="contents">Contents</a></p>
57 g2boojum 1.1 <ul class="simple">
58     <li><a class="reference" href="#abstract" id="id2" name="id2">Abstract</a></li>
59 g2boojum 1.4 <li><a class="reference" href="#status-update" id="id3" name="id3">Status Update</a></li>
60     <li><a class="reference" href="#motivation" id="id4" name="id4">Motivation</a></li>
61     <li><a class="reference" href="#proposed-change" id="id5" name="id5">Proposed change</a><ul>
62     <li><a class="reference" href="#update-tool" id="id6" name="id6">Update tool</a></li>
63     <li><a class="reference" href="#glsa-format" id="id7" name="id7">GLSA format</a></li>
64     <li><a class="reference" href="#glsa-release-process" id="id8" name="id8">GLSA release process</a></li>
65     <li><a class="reference" href="#portage-changes" id="id9" name="id9">Portage changes</a></li>
66 g2boojum 1.1 </ul>
67     </li>
68 g2boojum 1.4 <li><a class="reference" href="#rationale" id="id10" name="id10">Rationale</a></li>
69     <li><a class="reference" href="#implementation" id="id11" name="id11">Implementation</a></li>
70     <li><a class="reference" href="#backwards-compatibility" id="id12" name="id12">Backwards compatibility</a></li>
71     <li><a class="reference" href="#copyright" id="id13" name="id13">Copyright</a></li>
72 g2boojum 1.1 </ul>
73     </div>
74     <div class="section" id="abstract">
75     <h1><a class="toc-backref" href="#id2" name="abstract">Abstract</a></h1>
76     <p>There is currently no automatic way to check a Gentoo system for identified
77     security holes or auto-apply security fixes. This GLEP proposes a way to deal
78     with this issue</p>
79     </div>
80 g2boojum 1.4 <div class="section" id="status-update">
81     <h1><a class="toc-backref" href="#id3" name="status-update">Status Update</a></h1>
82     <p>Beta implementation in gentoolkit.</p>
83     </div>
84 g2boojum 1.1 <div class="section" id="motivation">
85 g2boojum 1.4 <h1><a class="toc-backref" href="#id4" name="motivation">Motivation</a></h1>
86 g2boojum 1.1 <p>Automatic checking for security updates is a often requested feature for Gentoo.
87     Implementing it will enable users to fix security holes without reading every
88     security announcement. It's also a feature that is often required in enterprise
89     environments.</p>
90     </div>
91     <div class="section" id="proposed-change">
92 g2boojum 1.4 <h1><a class="toc-backref" href="#id5" name="proposed-change">Proposed change</a></h1>
93 g2boojum 1.1 <div class="section" id="update-tool">
94 g2boojum 1.4 <h2><a class="toc-backref" href="#id6" name="update-tool">Update tool</a></h2>
95 g2boojum 1.2 <p>The coding part of this GLEP is a update tool that reads a GLSA, verifies its
96     GPG signature, checks if the system is affected by it and executes one of the
97     following actions, depending on user preferences:</p>
98 g2boojum 1.1 <ul class="simple">
99     <li>run all steps necessary to fix the security hole, including package updates and
100     daemon restarts.</li>
101     <li>instruct the user how to fix the security hole.</li>
102     <li>print the GLSA so the user can get more information if desired.</li>
103     </ul>
104     <p>Once this tool is implemented and well tested it can be integrated into portage.
105     A prototype <a class="reference" href="#implementation">implementation</a> for this tool exists.</p>
106     </div>
107     <div class="section" id="glsa-format">
108 g2boojum 1.4 <h2><a class="toc-backref" href="#id7" name="glsa-format">GLSA format</a></h2>
109 g2boojum 1.1 <p>The GLSA format needs to be specified, I suggest using XML for that to simplify
110     parsing and later extensions. See <a class="reference" href="#implementation">implementation</a> for a sample DTD. The format
111     has to be compatible with the update tool of course. If necessary a converter
112 g2boojum 1.3 tool or an editor could be written for people not comfortable with XML (update:
113     a QT based editor for the GLSA format written by plasmaroo exists in the
114     gentoo-projects repository). Every GLSA has to be GPG signed by the responsible
115     developer, who has to be a member of the security herd.</p>
116 g2boojum 1.1 </div>
117     <div class="section" id="glsa-release-process">
118 g2boojum 1.4 <h2><a class="toc-backref" href="#id8" name="glsa-release-process">GLSA release process</a></h2>
119 g2boojum 1.1 <p>Additional to sending the GLSA to the gentoo-announce mailing list it has to be
120     stored on a HTTP/FTP server and in the portage tree. I'd suggest a script should
121     be used to release a GLSA that will:</p>
122     <ul class="simple">
123     <li>check the GLSA for correctness</li>
124 g2boojum 1.2 <li>sign the GLSA with the developers GPG key</li>
125 g2boojum 1.1 <li>send a mail to gentoo-announce with the XML GLSA and a plaintext version attached</li>
126 g2boojum 1.3 <li>upload it to www.gentoo.org/security/en/glsa (via cvs commit)</li>
127     <li>put it on the rsync server (via cvs commit)</li>
128 g2boojum 1.1 <li>notify the moderators on the forums to make an announcement</li>
129     </ul>
130     </div>
131     <div class="section" id="portage-changes">
132 g2boojum 1.4 <h2><a class="toc-backref" href="#id9" name="portage-changes">Portage changes</a></h2>
133 g2boojum 1.1 <p>Until the <a class="reference" href="#update-tool">update tool</a> is integrated into portage there will be no code changes
134     to portage. The update tool might require a few new configuration options, these
135     could be placed in make.conf or another config file in /etc/portage.</p>
136     </div>
137     </div>
138     <div class="section" id="rationale">
139 g2boojum 1.4 <h1><a class="toc-backref" href="#id10" name="rationale">Rationale</a></h1>
140 g2boojum 1.1 <p>The lack of automated security updates for Gentoo is one of the most often requested
141     features for portage as it is one of the standard features of other distributions.
142     As Gentoo already provides GLSAs for important security bugs it is only natural
143     to use these to implement this feature.</p>
144     <p>To parse a GLSA in a program the format needs to be specified and a parser has
145     to be written. I suggest the use of XML for future GLSAs for the following reasons:</p>
146     <ul class="simple">
147     <li>can be parsed and validated with existing libraries</li>
148     <li>easy to extend while maintaining backwards compatibility</li>
149     <li>tools can convert XML GLSAs in other formats, the other direction would be harder</li>
150     <li>websites can use XSLT to markup GLSAs</li>
151     </ul>
152     <p>Putting the GLSAs in the portage tree allows all users to check their systems
153     for security updates without taking more actions and simplifies later integration
154     of the update tool into portage. For security minded persons the GLSAs are
155     available on a HTTP server to ease the load of the rsync servers.</p>
156 g2boojum 1.2 <p>To verify the signatures of the GLSAs the public keys of the developers should be
157     available in the portage tree and on the HTTP server. The verification is necessary
158     to prevent exploits by fake GLSAs.</p>
159 g2boojum 1.1 </div>
160     <div class="section" id="implementation">
161 g2boojum 1.4 <h1><a class="toc-backref" href="#id11" name="implementation">Implementation</a></h1>
162 g2boojum 1.1 <p>A prototype implementation (including the update tool, a DTD and a sample
163 g2boojum 1.3 XMLified GLSA) exists at <a class="reference" href="http://gentoo.devel-net.org/glsa/">http://gentoo.devel-net.org/glsa/</a> and in the
164     gentoo-projects/gentoo-security/GLSA repository. This GLEP is based
165     on that implementation, though it can be changed or rewritten if necessary.</p>
166 g2boojum 1.1 </div>
167     <div class="section" id="backwards-compatibility">
168 g2boojum 1.4 <h1><a class="toc-backref" href="#id12" name="backwards-compatibility">Backwards compatibility</a></h1>
169 g2boojum 1.1 <p>The current <a class="reference" href="#glsa-release-process">GLSA release process</a> needs to be replaced with this proposal. It
170     would be nice if old GLSAs would be transformed into XML as well, but that is
171     not a requirement for this GLEP.</p>
172     </div>
173     <div class="section" id="copyright">
174 g2boojum 1.4 <h1><a class="toc-backref" href="#id13" name="copyright">Copyright</a></h1>
175 g2boojum 1.1 <p>This document has been placed in the public domain.</p>
176     </div>
177     </div>
178    
179 g2boojum 1.4 <hr class="footer" />
180 g2boojum 1.1 <div class="footer">
181     <a class="reference" href="glep-0014.txt">View document source</a>.
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