glsa-202305-19.xml


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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="202305-19">
    <title>Firejail: Local Privilege Escalation</title>
    <synopsis>A vulnerability has been discovered in Firejail which could result in local root privilege escalation.</synopsis>
    <product type="ebuild">firejail,firejail-lts</product>
    <announced>2023-05-03</announced>
    <revised count="1">2023-05-03</revised>
    <bug>850748</bug>
    <access>remote</access>
    <affected>
        <package name="sys-apps/firejail" auto="yes" arch="*">
            <unaffected range="ge">0.9.70</unaffected>
            <vulnerable range="lt">0.9.70</vulnerable>
        </package>
        <package name="sys-apps/firejail-lts" auto="yes" arch="*">
            <vulnerable range="le">0.9.56.2-r1</vulnerable>
        </package>
    </affected>
    <background>
        <p>A SUID program that reduces the risk of security breaches by restricting the running environment of untrusted applications using Linux namespaces and seccomp-bpf.</p>
    </background>
    <description>
        <p>Firejail does not sufficiently validate the user&#39;s environment prior to using it as the root user when using the --join command line option.</p>
    </description>
    <impact type="normal">
        <p>An unprivileged user can exploit this vulnerability to achieve local root privileges.</p>
    </impact>
    <workaround>
        <p>System administrators can mitigate this vulnerability via adding either &#34;force-nonewprivs yes&#34; or &#34;join no&#34; to the Firejail configuration file in /etc/firejail/firejail.config.</p>
    </workaround>
    <resolution>
        <p>Gentoo has discontinued support for sys-apps/firejail-lts. Users should unmerge it in favor of sys-apps/firejail:</p>
        
        <code>
          # emerge --ask --depclean --verbose "sys-apps/firejail-lts"
          # emerge --ask --verbose "sys-apps/firejail"
        </code>
        
        <p>All Firejail users should upgrade to the latest version:</p>
        
        <code>
          # emerge --ask --oneshot --verbose ">=sys-apps/firejail-0.9.70"
        </code>
    </resolution>
    <references>
        <uri link="https://nvd.nist.gov/vuln/detail/CVE-2022-31214">CVE-2022-31214</uri>
    </references>
    <metadata tag="requester" timestamp="2023-05-03T10:04:36.994181Z">ajak</metadata>
    <metadata tag="submitter" timestamp="2023-05-03T10:04:36.999752Z">sam</metadata>
</glsa>