<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202209-10">
    <title>Logcheck: Root privilege escalation</title>
    <synopsis>A vulnerability has been discovered in Logcheck&#39;s ebuilds which could allow for root privilege escalation.</synopsis>
    <product type="ebuild">logcheck</product>
    <announced>2022-09-25</announced>
    <revised count="1">2022-09-25</revised>
    <bug>630752</bug>
    <access>remote</access>
    <affected>
        <package name="app-admin/logcheck" auto="yes" arch="*">
            <vulnerable range="le">1.3.23</vulnerable>
        </package>
    </affected>
    <background>
        <p>Logcheck mails anomalies in the system logfiles to the administrator.</p>
    </background>
    <description>
        <p>The pkg_postinst phase of the Logcheck ebuilds recursively chown the /etc/logcheck and /var/lib/logcheck directories. If the logcheck adds hardlinks to other files in these directories, the chown call will follow the link and transfer ownership of any file to the logcheck user.</p>
    </description>
    <impact type="normal">
        <p>A local attacker with access to the logcheck user could escalate to root privileges.</p>
    </impact>
    <workaround>
        <p>There is no known workaround at this time.</p>
    </workaround>
    <resolution>
        <p>Gentoo has discontinued support for Logcheck. We recommend that users remove it:</p>
        
        <code>
          # emerge --ask --depclean "app-admin/logcheck"
        </code>
    </resolution>
    <references>
        <uri link="https://nvd.nist.gov/vuln/detail/CVE-2017-20148">CVE-2017-20148</uri>
    </references>
    <metadata tag="requester" timestamp="2022-09-25T13:34:57.482832Z">ajak</metadata>
    <metadata tag="submitter" timestamp="2022-09-25T13:34:57.487714Z">ajak</metadata>
</glsa>