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70 lines
2.4 KiB
70 lines
2.4 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="200407-03">
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<title>Apache 2: Remote denial of service attack</title>
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<synopsis>
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A bug in Apache may allow a remote attacker to perform a Denial of Service
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attack. With certain configurations this could lead to a heap based buffer
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overflow.
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</synopsis>
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<product type="ebuild">Apache</product>
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<announced>2004-07-04</announced>
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<revised count="02">2007-12-30</revised>
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<bug>55441</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">2.0.49-r4</unaffected>
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<unaffected range="lt">2</unaffected>
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<vulnerable range="le">2.0.49-r3</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 Project is an effort to develop and maintain an
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open-source HTTP server for modern operating systems. The goal of this
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project is to provide a secure, efficient and extensible server that
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provides services in tune with the current HTTP standards.
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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 protocol.c file handling header lines will cause Apache to
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allocate memory for header lines starting with TAB or SPACE.
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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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An attacker can exploit this vulnerability to perform a Denial of Service
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attack by causing Apache to exhaust all memory. On 64 bit systems with more
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than 4GB of virtual memory a possible integer signedness error could lead
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to a buffer based overflow causing Apache to crash and under some
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circumstances execute arbitrary code as the user running Apache, usually
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"apache".
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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. All users are encouraged to
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upgrade to the latest available version:
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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 2 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-r4"
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# emerge ">=www-servers/apache-2.0.49-r4"</code>
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</resolution>
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<references>
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<uri link="http://www.guninski.com/httpd1.html">Georgi Guninski security advisory #70, 2004</uri>
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<uri link="https://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0493">CAN-2004-0493</uri>
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</references>
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<metadata tag="submitter">
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jaervosz
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</metadata>
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</glsa>
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