glsa-202309-13.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202309-13">
    <title>GMP: Buffer Overflow Vulnerability</title>
    <synopsis>A buffer overflow vulnerability has been found in GMP which could result in denial of service.</synopsis>
    <product type="ebuild">gmp</product>
    <announced>2023-09-29</announced>
    <revised count="1">2023-09-29</revised>
    <bug>823804</bug>
    <access>remote</access>
    <affected>
        <package name="dev-libs/gmp" auto="yes" arch="*">
            <unaffected range="ge">6.2.1-r2</unaffected>
            <vulnerable range="lt">6.2.1-r2</vulnerable>
        </package>
    </affected>
    <background>
        <p>The GNU Multiple Precision Arithmetic Library is a library forarbitrary-precision arithmetic on different types of numbers.</p>
    </background>
    <description>
        <p>There is an integer overflow leading to a buffer overflow when processing untrusted input via GMP&#39;s mpz_inp_raw function.</p>
    </description>
    <impact type="normal">
        <p>Untrusted input can cause a denial of service via segmentation fault.</p>
    </impact>
    <workaround>
        <p>Users can ensure no untrusted input is passed into GMP&#39;s mpz_inp_raw function.</p>
    </workaround>
    <resolution>
        <p>All GMP users should upgrade to the latest version:</p>
        
        <code>
          # emerge --sync
          # emerge --ask --oneshot --verbose ">=dev-libs/gmp-6.2.1-r2"
        </code>
    </resolution>
    <references>
        <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-43618">CVE-2021-43618</uri>
    </references>
    <metadata tag="requester" timestamp="2023-09-29T13:02:07.835979Z">ajak</metadata>
    <metadata tag="submitter" timestamp="2023-09-29T13:02:07.839044Z">graaff</metadata>
</glsa>