64 lines
2 KiB
XML
64 lines
2 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="200901-10">
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<title>GnuTLS: Certificate validation error</title>
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<synopsis>
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A certificate validation error in GnuTLS might allow for spoofing attacks.
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</synopsis>
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<product type="ebuild">gnutls</product>
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<announced>January 14, 2009</announced>
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<revised>January 14, 2009: 01</revised>
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<bug>245850</bug>
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<access>remote</access>
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<affected>
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<package name="net-libs/gnutls" auto="yes" arch="*">
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<unaffected range="ge">2.4.1-r2</unaffected>
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<vulnerable range="lt">2.4.1-r2</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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GnuTLS is an open-source implementation of TLS 1.0 and SSL 3.0.
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</p>
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</background>
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<description>
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<p>
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Martin von Gagern reported that the _gnutls_x509_verify_certificate()
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function in lib/x509/verify.c trusts certificate chains in which the
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last certificate is an arbitrary trusted, self-signed certificate.
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</p>
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</description>
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<impact type="normal">
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<p>
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A remote attacker could exploit this vulnerability and spoof arbitrary
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names to conduct Man-In-The-Middle attacks and intercept sensitive
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information.
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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 GnuTLS 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-libs/gnutls-2.4.1-r2"</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-2008-4989">CVE-2008-4989</uri>
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</references>
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<metadata tag="requester" timestamp="Sun, 30 Nov 2008 19:06:26 +0000">
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keytoaster
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</metadata>
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<metadata tag="submitter" timestamp="Sat, 10 Jan 2009 23:37:58 +0000">
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p-y
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</metadata>
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<metadata tag="bugReady" timestamp="Sat, 10 Jan 2009 23:38:09 +0000">
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p-y
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</metadata>
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</glsa>
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