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95 lines
3.4 KiB
95 lines
3.4 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="200904-11">
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<title>Tor: Multiple vulnerabilities</title>
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<synopsis>
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Multiple vulnerabilities in Tor might allow for heap corruption, Denial of
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Service, escalation of privileges and information disclosure.
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</synopsis>
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<product type="ebuild">tor</product>
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<announced>2009-04-08</announced>
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<revised count="01">2009-04-08</revised>
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<bug>250018</bug>
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<bug>256078</bug>
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<bug>258833</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/tor" auto="yes" arch="*">
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<unaffected range="ge">0.2.0.34</unaffected>
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<vulnerable range="lt">0.2.0.34</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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Tor is an implementation of second generation Onion Routing, a
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connection-oriented anonymizing communication service.
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</p>
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</background>
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<description>
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<ul>
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<li>
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Theo de Raadt reported that the application does not properly drop
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privileges to the primary groups of the user specified via the "User"
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configuration option (CVE-2008-5397).
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</li>
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<li>
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rovv reported that the "ClientDNSRejectInternalAddresses" configuration
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option is not always enforced (CVE-2008-5398).
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</li>
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<li>
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Ilja van Sprundel reported a heap-corruption vulnerability that might
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be remotely triggerable on some platforms (CVE-2009-0414).
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</li>
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<li>
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It has been reported that incomplete IPv4 addresses are treated as
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valid, violating the specification (CVE-2009-0939).
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</li>
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<li>
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Three unspecified vulnerabilities have also been reported
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(CVE-2009-0936, CVE-2009-0937, CVE-2009-0938).
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</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 escalate privileges by leveraging unintended
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supplementary group memberships of the Tor process. A remote attacker
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could exploit these vulnerabilities to cause a heap corruption with
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unknown impact and attack vectors, to cause a Denial of Service via CPU
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consuption or daemon crash, and to weaken anonymity provided by the
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service.
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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 Tor 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/tor-0.2.0.34"</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-2008-5397">CVE-2008-5397</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2008-5398">CVE-2008-5398</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0414">CVE-2009-0414</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0936">CVE-2009-0936</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0937">CVE-2009-0937</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0938">CVE-2009-0938</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-0939">CVE-2009-0939</uri>
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</references>
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<metadata tag="requester" timestamp="2009-01-25T14:41:40Z">
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craig
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</metadata>
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<metadata tag="submitter" timestamp="2009-02-12T16:48:01Z">
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rbu
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</metadata>
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<metadata tag="bugReady" timestamp="2009-02-12T16:48:17Z">
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rbu
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</metadata>
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</glsa>
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