66 lines
2.1 KiB
XML
66 lines
2.1 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="200707-13">
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<title>Fail2ban: Denial of Service</title>
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<synopsis>
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Fail2ban is vulnerable to a Denial of Service attack.
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</synopsis>
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<product type="ebuild">fail2ban</product>
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<announced>July 28, 2007</announced>
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<revised>January 09, 2008: 02</revised>
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<bug>181214</bug>
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<access>remote</access>
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<affected>
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<package name="net-analyzer/fail2ban" auto="yes" arch="*">
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<unaffected range="ge">0.8.0-r1</unaffected>
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<vulnerable range="lt">0.8.0-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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Fail2ban is a tool for parsing log files and banning IP addresses which
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make too many password failures.
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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 vulnerability has been discovered in Fail2ban when parsing log files.
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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 send specially crafted SSH login banners to the
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vulnerable host, which would prevent any ssh connection to the host and
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result in a Denial of Service.
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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 Fail2ban 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-analyzer/fail2ban-0.8.0-r1"</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-2007-4321">CVE-2007-4321</uri>
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<uri link="http://www.ossec.net/en/attacking-loganalysis.html#fail2ban">Original advisory</uri>
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</references>
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<metadata tag="requester" timestamp="Tue, 03 Jul 2007 22:02:25 +0000">
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aetius
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</metadata>
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<metadata tag="submitter" timestamp="Sun, 15 Jul 2007 18:12:05 +0000">
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p-y
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</metadata>
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<metadata tag="bugReady" timestamp="Sun, 15 Jul 2007 18:13:27 +0000">
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p-y
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</metadata>
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</glsa>
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