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83 lines
2.9 KiB
83 lines
2.9 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="200905-04">
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<title>GnuTLS: Multiple vulnerabilities</title>
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<synopsis>
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Multiple vulnerabilities in GnuTLS might result in a Denial of Service,
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spoofing or the generation of invalid keys.
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</synopsis>
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<product type="ebuild">gnutls</product>
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<announced>May 24, 2009</announced>
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<revised>May 24, 2009: 01</revised>
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<bug>267774</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">2.6.6</unaffected>
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<vulnerable range="lt">2.6.6</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 the TLS 1.0 and SSL 3.0
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protocols.
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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 found in GnuTLS:
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</p>
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<ul>
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<li>Miroslav Kratochvil reported that lib/pk-libgcrypt.c does not
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properly handle corrupt DSA signatures, possibly leading to a
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double-free vulnerability (CVE-2009-1415).</li>
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<li>Simon Josefsson
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reported that GnuTLS generates RSA keys stored in DSA structures when
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creating a DSA key (CVE-2009-1416).</li>
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<li>Romain Francoise reported
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that the _gnutls_x509_verify_certificate() function in
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lib/x509/verify.c does not perform time checks, resulting in the
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"gnutls-cli" program accepting X.509 certificates with validity times
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in the past or future (CVE-2009-1417).</li>
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</ul>
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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 entice a user or automated system to process a
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specially crafted DSA certificate, possibly resulting in a Denial of
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Service condition. NOTE: This issue might have other unspecified impact
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including the execution of arbitrary code. Furthermore, a remote
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attacker could spoof signatures on certificates and the "gnutls-cli"
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application can be tricked into accepting an invalid certificate.
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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-2.6.6"</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-2009-1415">CVE-2009-1415</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1416">CVE-2009-1416</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-1417">CVE-2009-1417</uri>
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</references>
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<metadata tag="requester" timestamp="Wed, 06 May 2009 18:48:21 +0000">
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a3li
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</metadata>
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<metadata tag="submitter" timestamp="Thu, 07 May 2009 11:40:21 +0000">
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a3li
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</metadata>
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<metadata tag="bugReady" timestamp="Sun, 24 May 2009 11:17:39 +0000">
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p-y
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</metadata>
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</glsa>
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