glsa-202405-24.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202405-24">
    <title>ytnef: Multiple Vulnerabilities</title>
    <synopsis>Multiple vulnerabilities have been discovered in ytnef, the worst of which could potentially lead to remote code execution.</synopsis>
    <product type="ebuild">ytnef</product>
    <announced>2024-05-08</announced>
    <revised count="1">2024-05-08</revised>
    <bug>774255</bug>
    <access>remote</access>
    <affected>
        <package name="net-mail/ytnef" auto="yes" arch="*">
            <unaffected range="ge">2.0</unaffected>
            <vulnerable range="lt">2.0</vulnerable>
        </package>
    </affected>
    <background>
        <p>ytnef is a TNEF stream reader for reading winmail.dat files.</p>
    </background>
    <description>
        <p>The TNEFSubjectHandler function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a double free which can be triggered via a crafted file.

The SwapWord function in lib/ytnef.c allows remote attackers to cause a denial-of-service (and potentially code execution) due to a heap buffer overflow which can be triggered via a crafted file.</p>
    </description>
    <impact type="normal">
        <p>Please review the referenced CVE identifiers for details.</p>
    </impact>
    <workaround>
        <p>There is no known workaround at this time.</p>
    </workaround>
    <resolution>
        <p>All ytnef users should upgrade to the latest version:</p>
        
        <code>
          # emerge --sync
          # emerge --ask --oneshot --verbose ">=net-mail/ytnef-2.0"
        </code>
    </resolution>
    <references>
        <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-3403">CVE-2021-3403</uri>
        <uri link="https://nvd.nist.gov/vuln/detail/CVE-2021-3404">CVE-2021-3404</uri>
    </references>
    <metadata tag="requester" timestamp="2024-05-08T08:16:41.923823Z">graaff</metadata>
    <metadata tag="submitter" timestamp="2024-05-08T08:16:41.929071Z">graaff</metadata>
</glsa>