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    <title>MongoDB Jira</title>
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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>[SERVER-4609] StringBuilder signed integer max buffer size spec is too low, can cause allocated memory buffer overflow upon call to BSONObj::toString()</title>
                <link>https://jira.mongodb.org/browse/SERVER-4609</link>
                <project id="10000" key="SERVER">Core Server</project>
                    <description>&lt;p&gt;        StringBuilder&amp;amp; operator&amp;lt;&amp;lt;( int x ) &lt;/p&gt;
{
            return SBNUM( x , 11 , &quot;%d&quot; );
        }

&lt;p&gt;One of the longest signed integers is -2147483648, which is 11 bytes to print.  And sprintf will add a null byte as a terminator, so 12 total bytes need to be allocated.&lt;/p&gt;

&lt;p&gt;I&apos;d recommend checking the other max sizes passed to SBNUM and also switching to snprintf and checking its return value to ensure the &apos;n&apos; limit isn&apos;t exceeded at runtime.&lt;/p&gt;</description>
                <environment></environment>
        <key id="27630">SERVER-4609</key>
            <summary>StringBuilder signed integer max buffer size spec is too low, can cause allocated memory buffer overflow upon call to BSONObj::toString()</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="9">Done</resolution>
                                        <assignee username="milkie@mongodb.com">Eric Milkie</assignee>
                                    <reporter username="aaron">Aaron Staple</reporter>
                        <labels>
                    </labels>
                <created>Tue, 3 Jan 2012 23:56:54 +0000</created>
                <updated>Mon, 11 Jul 2016 18:33:09 +0000</updated>
                            <resolved>Thu, 5 Jan 2012 17:52:11 +0000</resolved>
                                                    <fixVersion>2.0.6</fixVersion>
                    <fixVersion>2.1.0</fixVersion>
                                    <component>Stability</component>
                                        <votes>0</votes>
                                    <watches>1</watches>
                                                                                                                <comments>
                            <comment id="120813" author="auto" created="Fri, 18 May 2012 00:33:51 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;milkie&apos;, u&apos;name&apos;: u&apos;Eric Milkie&apos;, u&apos;email&apos;: u&apos;milkie@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4609&quot; title=&quot;StringBuilder signed integer max buffer size spec is too low, can cause allocated memory buffer overflow upon call to BSONObj::toString()&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4609&quot;&gt;&lt;del&gt;SERVER-4609&lt;/del&gt;&lt;/a&gt; ensure correct buffer sizes for string representations of numbers&lt;br/&gt;
Branch: v2.0&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/c3d0639c9a6939a279b8ced3d4c210aef1979d2a&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/c3d0639c9a6939a279b8ced3d4c210aef1979d2a&lt;/a&gt;&lt;/p&gt;</comment>
                            <comment id="77572" author="auto" created="Wed, 4 Jan 2012 18:29:06 +0000"  >&lt;p&gt;Author:&lt;/p&gt;
{u&apos;login&apos;: u&apos;milkie&apos;, u&apos;name&apos;: u&apos;Eric Milkie&apos;, u&apos;email&apos;: u&apos;milkie@10gen.com&apos;}
&lt;p&gt;Message: &lt;a href=&quot;https://jira.mongodb.org/browse/SERVER-4609&quot; title=&quot;StringBuilder signed integer max buffer size spec is too low, can cause allocated memory buffer overflow upon call to BSONObj::toString()&quot; class=&quot;issue-link&quot; data-issue-key=&quot;SERVER-4609&quot;&gt;&lt;del&gt;SERVER-4609&lt;/del&gt;&lt;/a&gt; ensure correct buffer sizes for string representations of numbers&lt;br/&gt;
Branch: master&lt;br/&gt;
&lt;a href=&quot;https://github.com/mongodb/mongo/commit/5577afa6b7da62677dcacc983988144b41f7f308&quot; class=&quot;external-link&quot; target=&quot;_blank&quot; rel=&quot;nofollow noopener&quot;&gt;https://github.com/mongodb/mongo/commit/5577afa6b7da62677dcacc983988144b41f7f308&lt;/a&gt;&lt;/p&gt;</comment>
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            <issuekey id="24395">SERVER-4192</issuekey>
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            <issuekey id="44541">SERVER-6488</issuekey>
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            <issuekey id="24765">SERVER-4249</issuekey>
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