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        <version>9.7.1</version>
        <build-number>970001</build-number>
        <build-date>13-04-2023</build-date>
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<item>
            <title>[CDRIVER-3488] Use-after-free after popping a session from a client that has been reset</title>
                <link>https://jira.mongodb.org/browse/CDRIVER-3488</link>
                <project id="10030" key="CDRIVER">C Driver</project>
                    <description>&lt;p&gt;Situation:&lt;/p&gt;
&lt;ul class=&quot;alternate&quot; type=&quot;square&quot;&gt;
	&lt;li&gt;mongoc_client_reset is called on a mongoc_client_t&lt;/li&gt;
	&lt;li&gt;an operation is performed on the client that requires popping a session from the session pool. This would be most operations against 3.6+ server.&lt;/li&gt;
&lt;/ul&gt;


&lt;p&gt;Since _mongoc_topology_clear_session_pool does not NULL out topology-&amp;gt;session_pool, the next attempt to pop a session results in a use-after-free when accessing topology-&amp;gt;session_pool.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1099835">CDRIVER-3488</key>
            <summary>Use-after-free after popping a session from a client that has been reset</summary>
                <type id="1" iconUrl="https://jira.mongodb.org/secure/viewavatar?size=xsmall&amp;avatarId=14703&amp;avatarType=issuetype">Bug</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="kevin.albertson@mongodb.com">Kevin Albertson</assignee>
                                    <reporter username="kevin.albertson@mongodb.com">Kevin Albertson</reporter>
                        <labels>
                    </labels>
                <created>Thu, 16 Jan 2020 18:36:33 +0000</created>
                <updated>Sat, 28 Oct 2023 11:28:58 +0000</updated>
                            <resolved>Thu, 16 Jan 2020 19:49:51 +0000</resolved>
                                    <version>1.15.3</version>
                                    <fixVersion>1.16.0</fixVersion>
                                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="2735629" author="xgen-internal-githook" created="Thu, 16 Jan 2020 19:48:39 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{&apos;name&apos;: &apos;Kevin Albertson&apos;, &apos;email&apos;: &apos;kevin.albertson@mongodb.com&apos;, &apos;username&apos;: &apos;kevinAlbs&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/CDRIVER-3488&quot; title=&quot;Use-after-free after popping a session from a client that has been reset&quot; class=&quot;issue-link&quot; data-issue-key=&quot;CDRIVER-3488&quot;&gt;&lt;del&gt;CDRIVER-3488&lt;/del&gt;&lt;/a&gt; NULL session pool on reset&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo-c-driver/commit/d062432e86a9d34e734b60e27cfd8b1cd3c736f2&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo-c-driver/commit/d062432e86a9d34e734b60e27cfd8b1cd3c736f2&lt;/a&gt;&lt;/p&gt;</comment>
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