82 lines
2.7 KiB
XML
82 lines
2.7 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="200406-05">
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<title>Apache: Buffer overflow in mod_ssl</title>
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<synopsis>
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A bug in mod_ssl may allow a remote attacker to execute remote code when
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Apache is configured a certain way.
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</synopsis>
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<product type="ebuild">Apache</product>
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<announced>June 09, 2004</announced>
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<revised>December 30, 2007: 03</revised>
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<bug>51368</bug>
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<access>remote</access>
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<affected>
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<package name="net-www/mod_ssl" auto="yes" arch="*">
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<unaffected range="ge">2.8.18</unaffected>
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<vulnerable range="lt">2.8.18</vulnerable>
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</package>
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<package name="www-servers/apache" auto="yes" arch="*">
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<unaffected range="lt">2.0</unaffected>
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<unaffected range="ge">2.0.49-r3</unaffected>
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<vulnerable range="le">2.0.49-r2</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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Apache is the most popular Web server on the Internet. mod_ssl provides
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Secure Sockets Layer encryption and authentication to Apache 1.3. Apache 2
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contains the functionality of mod_ssl.
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</p>
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</background>
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<description>
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<p>
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A bug in the function ssl_util_uuencode_binary in ssl_util.c may lead to a
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remote buffer overflow on a server configured to use FakeBasicAuth that
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will trust a client certificate with an issuing CA with a subject DN longer
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than 6k.
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</p>
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</description>
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<impact type="high">
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<p>
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Given the right server configuration, an attacker could cause a Denial of
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Service or execute code as the user running Apache, usually
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"apache". It is thought to be impossible to exploit this to
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execute code on the x86 platform, but the possibility for other platforms
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is unknown. This does not preclude a DoS on x86 systems.
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</p>
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</impact>
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<workaround>
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<p>
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A server should not be vulnerable if it is not configured to use
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FakeBasicAuth and to trust a client CA with a long subject DN.
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</p>
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</workaround>
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<resolution>
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<p>
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Apache 1.x users should upgrade to the latest version of mod_ssl:
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</p>
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<code>
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# emerge sync
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# emerge -pv ">=net-www/mod_ssl-2.8.18"
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# emerge ">=net-www/mod_ssl-2.8.18"</code>
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<p>
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Apache 2.x users should upgrade to the latest version of Apache:
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</p>
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<code>
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# emerge sync
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# emerge -pv ">=www-servers/apache-2.0.49-r3"
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# emerge ">=www-servers/apache-2.0.49-r3"</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=CAN-2004-0488">CAN-2004-0488</uri>
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</references>
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<metadata tag="submitter">
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dmargoli
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</metadata>
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</glsa>
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