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    <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>[MONGOCRYPT-243] libmongocrypt segfaults if a handle is used without init being called on it</title>
                <link>https://jira.mongodb.org/browse/MONGOCRYPT-243</link>
                <project id="17481" key="MONGOCRYPT">Libmongocrypt</project>
                    <description>&lt;p&gt;The program at &lt;a href=&quot;https://github.com/p-mongo/tests/blob/master/lmc-empty-bson/test-handle-not-inited.c&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/p-mongo/tests/blob/master/lmc-empty-bson/test-handle-not-inited.c&lt;/a&gt; calls mongocrypt_new and then, without calling mongocrypt_init, it calls mongocrypt_ctx_new and mongocrypt_ctx_decrypt_init. This results in a segfault on my system:&lt;/p&gt;

&lt;p/&gt;
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					&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;speed% ./test-handle-not-inited &lt;/span&gt;&lt;/pre&gt;
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					&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;zsh: segmentation fault  ./test-handle-not-inited&lt;/span&gt;&lt;/pre&gt;
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&lt;p/&gt;

&lt;p&gt;For reasons described in &lt;a href=&quot;https://jira.mongodb.org/browse/MONGOCRYPT-241&quot; class=&quot;external-link&quot; rel=&quot;nofollow&quot;&gt;https://jira.mongodb.org/browse/MONGOCRYPT-241&lt;/a&gt;, libmongocrypt segfaulting makes the errors (even if they are originating in libmongocrypt consumers rather than libmongocrypt itself) difficult to debug, and potentially can produce DOS on applications.&lt;/p&gt;

&lt;p&gt;I believe libmongocrypt should be performing more runtime checks on its data structures, such that it can fail with ordinary errors in cases of misuse rather than cause termination of the process into which it is loaded.&lt;/p&gt;</description>
                <environment></environment>
        <key id="1125080">MONGOCRYPT-243</key>
            <summary>libmongocrypt segfaults if a handle is used without init being called on it</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="10038" iconUrl="https://jira.mongodb.org/images/icons/subtask.gif" description="">Backlog</status>
                    <statusCategory id="2" key="new" colorName="default"/>
                                    <resolution id="-1">Unresolved</resolution>
                                        <assignee username="-1">Unassigned</assignee>
                                    <reporter username="oleg.pudeyev@mongodb.com">Oleg Pudeyev</reporter>
                        <labels>
                    </labels>
                <created>Fri, 31 Jan 2020 22:35:11 +0000</created>
                <updated>Wed, 30 Mar 2022 21:19:38 +0000</updated>
                                                                                                <votes>0</votes>
                                    <watches>1</watches>
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            <issuekey id="1125070">MONGOCRYPT-242</issuekey>
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            <issuekey id="1125020">MONGOCRYPT-241</issuekey>
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