glsa-202212-07.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202212-07">
    <title>libksba: Remote Code Execution</title>
    <synopsis>An integer overflow vulnerability has been found in libksba which could result in remote code execution.</synopsis>
    <product type="ebuild">libksba</product>
    <announced>2022-12-28</announced>
    <revised count="1">2022-12-28</revised>
    <bug>877453</bug>
    <access>remote</access>
    <affected>
        <package name="dev-libs/libksba" auto="yes" arch="*">
            <unaffected range="ge">1.6.3</unaffected>
            <vulnerable range="lt">1.6.3</vulnerable>
        </package>
    </affected>
    <background>
        <p>Libksba is a X.509 and CMS (PKCS#7) library.</p>
    </background>
    <description>
        <p>An integer overflow in parsing ASN.1 objects could lead to a buffer overflow.</p>
    </description>
    <impact type="high">
        <p>Crafted ASN.1 objects could trigger an integer overflow and buffer overflow to result in remote code execution.</p>
    </impact>
    <workaround>
        <p>There is no known workaround at this time.</p>
    </workaround>
    <resolution>
        <p>All libksba users should upgrade to the latest version:</p>
        
        <code>
          # emerge --sync
          # emerge --ask --oneshot --verbose ">=dev-libs/libksba-1.6.3"
        </code>
    </resolution>
    <references>
        <uri link="https://nvd.nist.gov/vuln/detail/CVE-2022-3515">CVE-2022-3515</uri>
        <uri link="https://nvd.nist.gov/vuln/detail/CVE-2022-47629">CVE-2022-47629</uri>
    </references>
    <metadata tag="requester" timestamp="2022-12-28T18:58:25.172111Z">ajak</metadata>
    <metadata tag="submitter" timestamp="2022-12-28T18:58:25.175039Z">ajak</metadata>
</glsa>