68 lines
2.1 KiB
XML
68 lines
2.1 KiB
XML
<?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="200808-08">
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<title>stunnel: Security bypass</title>
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<synopsis>
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stunnel does not properly prevent the authentication of a revoked
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certificate which would be published by OCSP.
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</synopsis>
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<product type="ebuild">stunnel</product>
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<announced>2008-08-08</announced>
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<revised count="02">2009-08-09</revised>
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<bug>222805</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/stunnel" auto="yes" arch="*">
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<unaffected range="ge">4.24</unaffected>
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<unaffected range="lt">4</unaffected>
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<vulnerable range="lt">4.24</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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The stunnel program is designed to work as an SSL encryption wrapper
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between a remote client and a local or remote server. OCSP (Online
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Certificate Status Protocol), as described in RFC 2560, is an internet
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protocol used for obtaining the revocation status of an X.509 digital
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certificate.
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</p>
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</background>
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<description>
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<p>
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An unspecified bug in the OCSP search functionality of stunnel has been
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discovered.
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</p>
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</description>
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<impact type="low">
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<p>
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A remote attacker can use a revoked certificate that would be
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successfully authenticated by stunnel. This issue only concerns the
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users who have enabled the OCSP validation in stunnel.
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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 stunnel 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 ">=net-misc/stunnel-4.24"</code>
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</resolution>
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<references>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-2420">CVE-2008-2420</uri>
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</references>
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<metadata tag="requester" timestamp="2008-08-03T21:53:49Z">
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rbu
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</metadata>
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<metadata tag="submitter" timestamp="2008-08-05T21:07:35Z">
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falco
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</metadata>
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<metadata tag="bugReady" timestamp="2008-08-05T21:08:30Z">
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falco
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</metadata>
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</glsa>
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