79 lines
2.6 KiB
XML
79 lines
2.6 KiB
XML
<?xml version="1.0" encoding="utf-8"?>
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<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
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<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
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<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
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<glsa id="200609-05">
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<title>OpenSSL, AMD64 x86 emulation base libraries: RSA signature forgery</title>
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<synopsis>
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OpenSSL fails to properly validate PKCS #1 v1.5 signatures.
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</synopsis>
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<product type="ebuild">openssl</product>
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<announced>September 07, 2006</announced>
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<revised>September 08, 2006: 02</revised>
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<bug>146375</bug>
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<bug>146438</bug>
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<access>remote</access>
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<affected>
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<package name="dev-libs/openssl" auto="yes" arch="*">
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<unaffected range="ge">0.9.7k</unaffected>
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<vulnerable range="lt">0.9.7k</vulnerable>
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</package>
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<package name="app-emulation/emul-linux-x86-baselibs" auto="yes" arch="amd64">
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<unaffected range="ge">2.5.2</unaffected>
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<vulnerable range="lt">2.5.2</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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OpenSSL is a toolkit implementing the Secure Sockets Layer, Transport
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Layer Security protocols and a general-purpose cryptography library.
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The x86 emulation base libraries for AMD64 contain a vulnerable version
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of OpenSSL.
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</p>
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</background>
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<description>
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<p>
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Daniel Bleichenbacher discovered that it might be possible to forge
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signatures signed by RSA keys with the exponent of 3.
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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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Since several CAs are using an exponent of 3 it might be possible for
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an attacker to create a key with a false CA signature.
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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 OpenSSL 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 ">=dev-libs/openssl-0.9.7k"</code>
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<p>
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All AMD64 x86 emulation base libraries users should upgrade to the
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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 ">=app-emulation/emul-linux-x86-baselibs-2.5.2"</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-2006-4339">CVE-2006-4339</uri>
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</references>
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<metadata tag="requester" timestamp="Tue, 05 Sep 2006 19:16:58 +0000">
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jaervosz
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</metadata>
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<metadata tag="submitter" timestamp="Wed, 06 Sep 2006 10:57:51 +0000">
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jaervosz
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</metadata>
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<metadata tag="bugReady" timestamp="Thu, 07 Sep 2006 20:02:33 +0000">
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jaervosz
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</metadata>
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</glsa>
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