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42 lines
1.8 KiB
42 lines
1.8 KiB
<?xml version="1.0" encoding="UTF-8"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="202210-26">
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<title>Shadow: TOCTOU Race</title>
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<synopsis>A TOCTOU race has been discovered in Shadow, which could result in the unauthorized modification of files.</synopsis>
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<product type="ebuild">shadow</product>
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<announced>2022-10-31</announced>
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<revised count="1">2022-10-31</revised>
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<bug>830486</bug>
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<access>remote</access>
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<affected>
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<package name="sys-apps/shadow" auto="yes" arch="*">
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<unaffected range="ge">4.12.2</unaffected>
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<vulnerable range="lt">4.12.2</vulnerable>
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</package>
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</affected>
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<background>
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<p>Shadow contains utilities to deal with user accounts</p>
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</background>
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<description>
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<p>A TOCTOU race condition was discovered in shadow. A local attacker with write privileges in a directory removed or copied by usermod/userdel could potentially exploit this flaw when the administrator invokes usermod/userdel.</p>
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</description>
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<impact type="normal">
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<p>An unauthorized user could potentially modify files which they do not have write permissions for.</p>
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</impact>
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<workaround>
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<p>There is no known workaround at this time.</p>
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</workaround>
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<resolution>
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<p>All Shadow users should upgrade to the latest version:</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=sys-apps/shadow-4.12.2"
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</code>
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</resolution>
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<references>
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<uri link="https://nvd.nist.gov/vuln/detail/CVE-2013-4235">CVE-2013-4235</uri>
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</references>
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<metadata tag="requester" timestamp="2022-10-31T01:22:12.661215Z">ajak</metadata>
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<metadata tag="submitter" timestamp="2022-10-31T01:22:12.666288Z">ajak</metadata>
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</glsa> |