75 lines
2.6 KiB
XML
75 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="200610-06">
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<title>Mozilla Network Security Service (NSS): RSA signature forgery</title>
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<synopsis>
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NSS fails to properly validate PKCS #1 v1.5 signatures.
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</synopsis>
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<product type="ebuild">nss</product>
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<announced>October 17, 2006</announced>
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<revised>October 17, 2006: 01</revised>
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<bug>148283</bug>
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<access>remote</access>
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<affected>
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<package name="dev-libs/nss" auto="yes" arch="*">
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<unaffected range="ge">3.11.3</unaffected>
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<vulnerable range="lt">3.11.3</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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The Mozilla Network Security Service is a library implementing security
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features like SSL v.2/v.3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12,
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S/MIME and X.509 certificates.
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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. This affects a
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number of RSA signature implementations, including Mozilla's NSS.
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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 Certificate Authorities (CAs) are using an exponent of 3
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it might be possible for an attacker to create a key with a false CA
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signature. This impacts any software using the NSS library, like the
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Mozilla products Firefox, Thunderbird and Seamonkey.
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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 NSS 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/nss-3.11.3"</code>
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<p>
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Note: As usual after updating a library, you should run
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'revdep-rebuild' (from the app-portage/gentoolkit package) to ensure
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that all applications linked to it are properly rebuilt.
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</p>
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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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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4340">CVE-2006-4340</uri>
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</references>
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<metadata tag="requester" timestamp="Mon, 25 Sep 2006 12:57:17 +0000">
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frilled
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</metadata>
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<metadata tag="bugReady" timestamp="Tue, 03 Oct 2006 18:27:05 +0000">
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vorlon078
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</metadata>
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<metadata tag="submitter" timestamp="Sun, 08 Oct 2006 19:45:16 +0000">
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frilled
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</metadata>
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</glsa>
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