68 lines
2.2 KiB
XML
68 lines
2.2 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="200909-20">
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<title>cURL: Certificate validation error</title>
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<synopsis>
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An error in the X.509 certificate handling of cURL might enable remote
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attackers to conduct man-in-the-middle attacks.
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</synopsis>
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<product type="ebuild">curl</product>
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<announced>September 25, 2009</announced>
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<revised>September 25, 2009: 01</revised>
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<bug>281515</bug>
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<access>remote</access>
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<affected>
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<package name="net-misc/curl" auto="yes" arch="*">
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<unaffected range="ge">7.19.6</unaffected>
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<vulnerable range="lt">7.19.6</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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cURL is a command line tool for transferring files with URL syntax,
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supporting numerous 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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Scott Cantor reported that cURL does not properly handle fields in
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X.509 certificates that contain an ASCII NUL (\0) character.
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Specifically, the processing of such fields is stopped at the first
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occurence of a NUL character. This type of vulnerability was recently
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discovered by Dan Kaminsky and Moxie Marlinspike.
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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 might employ a specially crafted X.509 certificate
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(that for instance contains a NUL character in the Common Name field)
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to conduct man-in-the-middle attacks.
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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 cURL 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-misc/curl-7.19.6"</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-2009-2417">CVE-2009-2417</uri>
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</references>
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<metadata tag="requester" timestamp="Sun, 13 Sep 2009 18:08:24 +0000">
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a3li
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</metadata>
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<metadata tag="submitter" timestamp="Mon, 14 Sep 2009 12:08:01 +0000">
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a3li
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</metadata>
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<metadata tag="bugReady" timestamp="Fri, 25 Sep 2009 18:22:08 +0000">
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a3li
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</metadata>
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</glsa>
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