glsa-202311-08.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202311-08">
    <title>GNU Libmicrohttpd: Buffer Overflow Vulnerability</title>
    <synopsis>A buffer overflow vulnerability has been discovered in GNU Libmicrohttpd.</synopsis>
    <product type="ebuild">libmicrohttpd</product>
    <announced>2023-11-25</announced>
    <revised count="1">2023-11-25</revised>
    <bug>778296</bug>
    <access>remote</access>
    <affected>
        <package name="net-libs/libmicrohttpd" auto="yes" arch="*">
            <unaffected range="gt">0.9.70</unaffected>
            <vulnerable range="eq">0.9.70</vulnerable>
        </package>
    </affected>
    <background>
        <p>GNU libmicrohttpd is a small C library that makes it easy to run an HTTP server as part of another application. GNU Libmicrohttpd is free software and part of the GNU project.</p>
    </background>
    <description>
        <p>A buffer overflow vulnerability has been discovered in GNU Libmicrohttpd. Please review the CVE identifier referenced below for details.</p>
    </description>
    <impact type="high">
        <p>A missing bounds check in the post_process_urlencoded function leads to a buffer overflow, allowing a remote attacker to write arbitrary data in an application that uses libmicrohttpd. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.</p>
    </impact>
    <workaround>
        <p>There is no known workaround at this time.</p>
    </workaround>
    <resolution>
        <p>All GNU Libmicrohttpd users should upgrade to the latest version:</p>
        
        <code>
          # emerge --sync
          # emerge --ask --oneshot --verbose ">net-libs/libmicrohttpd-0.9.70"
        </code>
    </resolution>
    <references>
        <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-3466">CVE-2021-3466</uri>
    </references>
    <metadata tag="requester" timestamp="2023-11-25T08:29:39.007233Z">graaff</metadata>
    <metadata tag="submitter" timestamp="2023-11-25T08:29:39.010725Z">graaff</metadata>
</glsa>