86 lines
3.1 KiB
XML
86 lines
3.1 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="200512-04">
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<title>Openswan, IPsec-Tools: Vulnerabilities in ISAKMP Protocol implementation</title>
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<synopsis>
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Openswan and IPsec-Tools suffer from an implementation flaw which may allow
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a Denial of Service attack.
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</synopsis>
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<product type="ebuild">openswan ipsec-tools</product>
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<announced>2005-12-12</announced>
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<revised count="02">2005-12-14</revised>
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<bug>112568</bug>
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<bug>113201</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/openswan" auto="yes" arch="*">
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<unaffected range="ge">2.4.4</unaffected>
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<vulnerable range="lt">2.4.4</vulnerable>
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</package>
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<package name="net-firewall/ipsec-tools" auto="yes" arch="*">
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<unaffected range="ge">0.6.3</unaffected>
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<unaffected range="rge">0.6.2-r1</unaffected>
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<unaffected range="rge">0.4-r2</unaffected>
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<vulnerable range="lt">0.6.3</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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Openswan is an implementation of IPsec for Linux. IPsec-Tools is a port
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of KAME's implementation of the IPsec utilities, including racoon, an
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Internet Key Exchange daemon. Internet Key Exchange version 1 (IKEv1),
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a derivate of ISAKMP, is an important part of IPsec. IPsec is widely
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used to secure exchange of packets at the IP layer and mostly used to
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implement Virtual Private Networks (VPNs).
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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 Oulu University Secure Programming Group (OUSPG) discovered that
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various ISAKMP implementations, including Openswan and racoon (included
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in the IPsec-Tools package), behave in an anomalous way when they
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receive and handle ISAKMP Phase 1 packets with invalid or abnormal
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contents.
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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 could craft specific packets that would result in a
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Denial of Service attack, if Openswan and racoon are used in specific,
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weak configurations.
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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 Openswan 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/openswan-2.4.4"</code>
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<p>
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All IPsec-Tools 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-firewall/ipsec-tools</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-2005-3671">CVE-2005-3671</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2005-3732">CVE-2005-3732</uri>
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<uri link="http://www.ee.oulu.fi/research/ouspg/protos/testing/c09/isakmp/">Original Advisory</uri>
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</references>
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<metadata tag="requester" timestamp="2005-12-02T12:39:46Z">
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jaervosz
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</metadata>
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<metadata tag="bugReady" timestamp="2005-12-05T03:24:10Z">
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adir
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</metadata>
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<metadata tag="submitter" timestamp="2005-12-05T03:54:41Z">
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adir
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</metadata>
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</glsa>
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