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99 lines
3.8 KiB
99 lines
3.8 KiB
<?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="200409-21">
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<title>Apache 2, mod_dav: Multiple vulnerabilities</title>
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<synopsis>
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Several vulnerabilities have been found in Apache 2 and mod_dav for Apache
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1.3 which could allow a remote attacker to cause a Denial of Service or a
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local user to get escalated privileges.
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</synopsis>
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<product type="ebuild">apache</product>
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<announced>2004-09-16</announced>
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<revised count="02">2007-12-30</revised>
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<bug>62626</bug>
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<bug>63948</bug>
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<bug>64145</bug>
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<access>remote</access>
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<affected>
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<package name="www-servers/apache" auto="yes" arch="*">
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<unaffected range="ge">2.0.51</unaffected>
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<unaffected range="lt">2.0</unaffected>
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<vulnerable range="lt">2.0.51</vulnerable>
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</package>
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<package name="net-www/mod_dav" auto="yes" arch="*">
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<unaffected range="ge">1.0.3-r2</unaffected>
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<vulnerable range="le">1.0.3-r1</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 Apache HTTP server is one of most popular web servers on the internet.
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mod_ssl provides SSL v2/v3 and TLS v1 support for it and mod_dav is the
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Apache module for Distributed Authoring and Versioning (DAV).
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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 potential infinite loop has been found in the input filter of mod_ssl
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(CAN-2004-0748) as well as a possible segmentation fault in the
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char_buffer_read function if reverse proxying to a SSL server is being used
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(CAN-2004-0751). Furthermore, mod_dav, as shipped in Apache httpd 2 or
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mod_dav 1.0.x for Apache 1.3, contains a NULL pointer dereference which can
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be triggered remotely (CAN-2004-0809). The third issue is an input
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validation error found in the IPv6 URI parsing routines within the apr-util
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library (CAN-2004-0786). Additionally a possible buffer overflow has been
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reported when expanding environment variables during the parsing of
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configuration files (CAN-2004-0747).
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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 could cause a Denial of Service either by aborting a SSL
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connection in a special way, resulting in CPU consumption, by exploiting
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the segmentation fault in mod_ssl or the mod_dav flaw. A remote attacker
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could also crash a httpd child process by sending a specially crafted URI.
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The last vulnerabilty could be used by a local user to gain the privileges
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of a httpd child, if the server parses a carefully prepared .htaccess file.
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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 Apache 2 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 -pv ">=www-servers/apache-2.0.51"
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# emerge ">=www-servers/apache-2.0.51"</code>
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<p>
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All mod_dav 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 -pv ">=net-www/mod_dav-1.0.3-r2"
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# emerge ">=net-www/mod_dav-1.0.3-r2"</code>
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</resolution>
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<references>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0747">CAN-2004-0747</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0748">CAN-2004-0748</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0751">CAN-2004-0751</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0786">CAN-2004-0786</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0809">CAN-2004-0809</uri>
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</references>
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<metadata tag="requester" timestamp="2004-09-09T04:54:03Z">
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jaervosz
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</metadata>
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<metadata tag="submitter" timestamp="2004-09-10T18:02:25Z">
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vorlon078
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</metadata>
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<metadata tag="bugReady" timestamp="2004-09-16T20:45:09Z">
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koon
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</metadata>
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</glsa>
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