|
|
|
|
<?xml version="1.0" encoding="utf-8"?>
|
|
|
|
|
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
|
|
|
|
|
<glsa id="200610-06">
|
|
|
|
|
<title>Mozilla Network Security Service (NSS): RSA signature forgery</title>
|
|
|
|
|
<synopsis>
|
|
|
|
|
NSS fails to properly validate PKCS #1 v1.5 signatures.
|
|
|
|
|
</synopsis>
|
|
|
|
|
<product type="ebuild">nss</product>
|
|
|
|
|
<announced>2006-10-17</announced>
|
|
|
|
|
<revised count="01">2006-10-17</revised>
|
|
|
|
|
<bug>148283</bug>
|
|
|
|
|
<access>remote</access>
|
|
|
|
|
<affected>
|
|
|
|
|
<package name="dev-libs/nss" auto="yes" arch="*">
|
|
|
|
|
<unaffected range="ge">3.11.3</unaffected>
|
|
|
|
|
<vulnerable range="lt">3.11.3</vulnerable>
|
|
|
|
|
</package>
|
|
|
|
|
</affected>
|
|
|
|
|
<background>
|
|
|
|
|
<p>
|
|
|
|
|
The Mozilla Network Security Service is a library implementing security
|
|
|
|
|
features like SSL v.2/v.3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12,
|
|
|
|
|
S/MIME and X.509 certificates.
|
|
|
|
|
</p>
|
|
|
|
|
</background>
|
|
|
|
|
<description>
|
|
|
|
|
<p>
|
|
|
|
|
Daniel Bleichenbacher discovered that it might be possible to forge
|
|
|
|
|
signatures signed by RSA keys with the exponent of 3. This affects a
|
|
|
|
|
number of RSA signature implementations, including Mozilla's NSS.
|
|
|
|
|
</p>
|
|
|
|
|
</description>
|
|
|
|
|
<impact type="normal">
|
|
|
|
|
<p>
|
|
|
|
|
Since several Certificate Authorities (CAs) are using an exponent of 3
|
|
|
|
|
it might be possible for an attacker to create a key with a false CA
|
|
|
|
|
signature. This impacts any software using the NSS library, like the
|
|
|
|
|
Mozilla products Firefox, Thunderbird and Seamonkey.
|
|
|
|
|
</p>
|
|
|
|
|
</impact>
|
|
|
|
|
<workaround>
|
|
|
|
|
<p>
|
|
|
|
|
There is no known workaround at this time.
|
|
|
|
|
</p>
|
|
|
|
|
</workaround>
|
|
|
|
|
<resolution>
|
|
|
|
|
<p>
|
|
|
|
|
All NSS users should upgrade to the latest version:
|
|
|
|
|
</p>
|
|
|
|
|
<code>
|
|
|
|
|
# emerge --sync
|
|
|
|
|
# emerge --ask --oneshot --verbose ">=dev-libs/nss-3.11.3"</code>
|
|
|
|
|
<p>
|
|
|
|
|
Note: As usual after updating a library, you should run
|
|
|
|
|
'revdep-rebuild' (from the app-portage/gentoolkit package) to ensure
|
|
|
|
|
that all applications linked to it are properly rebuilt.
|
|
|
|
|
</p>
|
|
|
|
|
</resolution>
|
|
|
|
|
<references>
|
|
|
|
|
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4339">CVE-2006-4339</uri>
|
|
|
|
|
<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-4340">CVE-2006-4340</uri>
|
|
|
|
|
</references>
|
|
|
|
|
<metadata tag="requester" timestamp="2006-09-25T12:57:17Z">
|
|
|
|
|
frilled
|
|
|
|
|
</metadata>
|
|
|
|
|
<metadata tag="bugReady" timestamp="2006-10-03T18:27:05Z">
|
|
|
|
|
vorlon078
|
|
|
|
|
</metadata>
|
|
|
|
|
<metadata tag="submitter" timestamp="2006-10-08T19:45:16Z">
|
|
|
|
|
frilled
|
|
|
|
|
</metadata>
|
|
|
|
|
</glsa>
|
