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75 lines
2.3 KiB
75 lines
2.3 KiB
<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
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<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200903-39">
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<title>pam_krb5: Privilege escalation</title>
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<synopsis>
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Two vulnerabilities in pam_krb5 might allow local users to elevate their
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privileges or overwrite arbitrary files.
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</synopsis>
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<product type="ebuild">pam_krb5</product>
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<announced>March 25, 2009</announced>
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<revised>March 25, 2009: 01</revised>
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<bug>257075</bug>
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<access>local</access>
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<affected>
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<package name="sys-auth/pam_krb5" auto="yes" arch="*">
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<unaffected range="ge">3.12</unaffected>
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<vulnerable range="lt">3.12</vulnerable>
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</package>
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</affected>
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<background>
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<p>
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pam_krb5 is a a Kerberos v5 PAM module.
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</p>
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</background>
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<description>
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<p>
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The following vulnerabilities were discovered:
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</p>
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<ul><li>pam_krb5
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does not properly initialize the Kerberos libraries for setuid use
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(CVE-2009-0360).</li>
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<li>Derek Chan reported that calls to
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pam_setcred() are not properly handled when running setuid
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(CVE-2009-0361).</li>
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</ul>
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</description>
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<impact type="high">
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<p>
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A local attacker could set an environment variable to point to a
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specially crafted Kerberos configuration file and launch a PAM-based
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setuid application to elevate privileges, or change ownership and
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overwrite arbitrary files.
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</p>
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</impact>
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<workaround>
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<p>
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There is no known workaround at this time.
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</p>
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</workaround>
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<resolution>
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<p>
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All pam_krb5 users should upgrade to the latest version:
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</p>
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<code>
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# emerge --sync
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# emerge --ask --oneshot --verbose ">=sys-auth/pam_krb5-3.12"</code>
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</resolution>
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<references>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0360">CVE-2009-0360</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0361">CVE-2009-0361</uri>
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</references>
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<metadata tag="requester" timestamp="Thu, 05 Mar 2009 20:23:59 +0000">
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keytoaster
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</metadata>
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<metadata tag="submitter" timestamp="Mon, 09 Mar 2009 12:57:24 +0000">
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p-y
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</metadata>
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<metadata tag="bugReady" timestamp="Mon, 09 Mar 2009 12:57:36 +0000">
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p-y
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</metadata>
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</glsa>
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