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    <title>MongoDB Jira</title>
    <link>https://jira.mongodb.org</link>
    <description>This file is an XML representation of an issue</description>
    <language>en-us</language>    <build-info>
        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[SERVER-31273] Use Source/Sink version of snappy functions</title>
                <link>https://jira.mongodb.org/browse/SERVER-31273</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;div class=&quot;panel&quot; style=&quot;background-color: #EEEEEE;border-color: #ccc;border-width: 1px;&quot;&gt;&lt;div class=&quot;panelHeader&quot; style=&quot;border-bottom-width: 1px;border-bottom-color: #ccc;background-color: #6CB33F;&quot;&gt;&lt;b&gt;Issue Status as of Sep 27, 2017&lt;/b&gt;&lt;/div&gt;&lt;div class=&quot;panelContent&quot; style=&quot;background-color: #EEEEEE;&quot;&gt;
&lt;p&gt;&lt;b&gt;ISSUE DESCRIPTION AND IMPACT&lt;/b&gt;&lt;br/&gt;
When wire protocol compression is enabled, a malicious attacker may exploit an existing vulnerability to deny service or modify server memory. This vulnerability has been assigned &lt;em&gt;CVE-2017-15535&lt;/em&gt;.&lt;/p&gt;

&lt;p&gt;&lt;b&gt;AFFECTED VERSIONS&lt;/b&gt;&lt;/p&gt;
&lt;ul&gt;
	&lt;li&gt;MongoDB 3.2 and older: are &lt;em&gt;not affected&lt;/em&gt; by this vulnerability&lt;/li&gt;
	&lt;li&gt;MongoDB 3.4: wire protocol compression was introduced in &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-3018&quot; title=&quot;Compression of wire protocol&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-3018&quot;&gt;&lt;del&gt;SERVER-3018&lt;/del&gt;&lt;/a&gt; and it first became available in MongoDB 3.4, but it is &lt;b&gt;disabled by default&lt;/b&gt;. If wire protocol compression is enabled, &lt;em&gt;MongoDB 3.4.0 to 3.4.9 may be affected by this vulnerability&lt;/em&gt;.&lt;/li&gt;
	&lt;li&gt;MongoDB 3.5 development release: 3.5 has wire protocol compression enabled by default and is &lt;em&gt;affected&lt;/em&gt; by this vulnerability.&lt;/li&gt;
	&lt;li&gt;MongoDB 3.6 and newer: &lt;em&gt;not affected&lt;/em&gt;.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;&lt;b&gt;DIAGNOSIS AND REMEDIATION&lt;/b&gt;&lt;br/&gt;
MongoDB 3.4 users may use the &lt;a href=&quot;https://docs.mongodb.com/manual/reference/command/getCmdLineOpts/#getcmdlineopts&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;getCmdLineOpts&lt;/a&gt; command to determine wire protocol compression is enabled. If the &lt;tt&gt;networkMessageCompressors&lt;/tt&gt; parameter is set to &lt;tt&gt;snappy&lt;/tt&gt;, a &lt;tt&gt;mongod&lt;/tt&gt; node is vulnerable.&lt;/p&gt;

&lt;p&gt;To disable wire protocol compression, users may specify &lt;tt&gt;disabled&lt;/tt&gt; as the compression engine, either in the command line:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt;--networkMessageCompressors disabled&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;
&lt;p&gt;or, alternatively, in the mongod configuration file as:&lt;/p&gt;
&lt;p/&gt;
&lt;div id=&quot;syntaxplugin&quot; class=&quot;syntaxplugin&quot; style=&quot;border: 1px dashed #bbb; border-radius: 5px !important; overflow: auto; max-height: 30em;&quot;&gt;
&lt;table cellspacing=&quot;0&quot; cellpadding=&quot;0&quot; border=&quot;0&quot; width=&quot;100%&quot; style=&quot;font-size: 1em; line-height: 1.4em !important; font-weight: normal; font-style: normal; color: black;&quot;&gt;
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				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;  margin-top: 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; net:&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
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						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; 	compression:&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
				&lt;tr id=&quot;syntaxplugin_code_and_gutter&quot;&gt;
						&lt;td  style=&quot; line-height: 1.4em !important; padding: 0em; vertical-align: top;&quot;&gt;
					&lt;pre style=&quot;font-size: 1em; margin: 0 10px;   margin-bottom: 10px;  width: auto; padding: 0;&quot;&gt;&lt;span style=&quot;color: black; font-family: &apos;Consolas&apos;, &apos;Bitstream Vera Sans Mono&apos;, &apos;Courier New&apos;, Courier, monospace !important;&quot;&gt; 		compressors: disabled&lt;/span&gt;&lt;/pre&gt;
			&lt;/td&gt;
		&lt;/tr&gt;
			&lt;/tbody&gt;
&lt;/table&gt;
&lt;/div&gt;
&lt;p/&gt;

&lt;p&gt;&lt;b&gt;FIX VERSIONS&lt;/b&gt;&lt;br/&gt;
This vulnerability is corrected in MongoDB 3.4.10 and MongoDB 3.6.&lt;/p&gt;
&lt;/div&gt;&lt;/div&gt;</description>
                <environment></environment>
        <key id="433237">SERVER-31273</key>
            <summary>Use Source/Sink version of snappy functions</summary>
                <type id="4" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14710&amp;avatarType=issuetype">Improvement</type>
                                            <priority id="3" iconUrl="https://jira.mongodb.org/images/icons/priorities/major.svg">Major - P3</priority>
                        <status id="6" iconUrl="https://jira.mongodb.org/images/icons/statuses/closed.png" description="The issue is considered finished, the resolution is correct. Issues which are closed can be reopened.">Closed</status>
                    <statusCategory id="3" key="done" colorName="success"/>
                                    <resolution id="13201">Fixed</resolution>
                                        <assignee username="jonathan.reams@mongodb.com">Jonathan Reams</assignee>
                                    <reporter username="jonathan.reams@mongodb.com">Jonathan Reams</reporter>
                        <labels>
                    </labels>
                <created>Tue, 26 Sep 2017 20:39:20 +0000</created>
                <updated>Mon, 30 Oct 2023 23:13:19 +0000</updated>
                            <resolved>Mon, 2 Oct 2017 17:17:32 +0000</resolved>
                                                    <fixVersion>3.4.10</fixVersion>
                    <fixVersion>3.6.0-rc0</fixVersion>
                                    <component>Networking</component>
                    <component>Security</component>
                                        <votes>0</votes>
                                    <watches>10</watches>
                                                                                                                <comments>
                            <comment id="1686717" author="xgen-internal-githook" created="Mon, 2 Oct 2017 17:16:33 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;jbreams@mongodb.com&apos;, &apos;name&apos;: &apos;Jonathan Reams&apos;, &apos;username&apos;: &apos;jbreams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-31273&quot; title=&quot;Use Source/Sink version of snappy functions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-31273&quot;&gt;&lt;del&gt;SERVER-31273&lt;/del&gt;&lt;/a&gt; Use Source/Sink version of snappy functions&lt;/p&gt;

&lt;p&gt;(cherry picked from commit 59ead734faa8aa51f0c53bf2bd39d0a0247ddf99)&lt;br/&gt;
Branch: v3.4&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/5ad69b851801edadbfde8fdf271f4ba7c21170b5&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/5ad69b851801edadbfde8fdf271f4ba7c21170b5&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="1685603" author="xgen-internal-githook" created="Fri, 29 Sep 2017 19:39:13 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;email&apos;: &apos;jbreams@mongodb.com&apos;, &apos;name&apos;: &apos;Jonathan Reams&apos;, &apos;username&apos;: &apos;jbreams&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-31273&quot; title=&quot;Use Source/Sink version of snappy functions&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-31273&quot;&gt;&lt;del&gt;SERVER-31273&lt;/del&gt;&lt;/a&gt; Use Source/Sink version of snappy functions&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/59ead734faa8aa51f0c53bf2bd39d0a0247ddf99&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/59ead734faa8aa51f0c53bf2bd39d0a0247ddf99&lt;/a&gt;&lt;/p&gt;</comment>
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