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81 lines
2.7 KiB
81 lines
2.7 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="200410-15">
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<title>Squid: Remote DoS vulnerability</title>
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<synopsis>
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Squid contains a vulnerability in the SNMP module which may lead to a
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denial of service.
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</synopsis>
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<product type="ebuild">squid</product>
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<announced>October 18, 2004</announced>
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<revised>December 30, 2007: 03</revised>
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<bug>67167</bug>
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<access>remote</access>
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<affected>
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<package name="net-proxy/squid" auto="yes" arch="*">
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<unaffected range="ge">2.5.7</unaffected>
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<vulnerable range="lt">2.5.7</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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Squid is a full-featured Web proxy cache designed to run on Unix
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systems. It supports proxying and caching of HTTP, FTP, and other URLs,
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as well as SSL support, cache hierarchies, transparent caching, access
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control lists and many other features.
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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 parsing error exists in the SNMP module of Squid where a
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specially-crafted UDP packet can potentially cause the server to
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restart, closing all current connections. This vulnerability only
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exists in versions of Squid compiled with the 'snmp' USE flag.
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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 repeatedly send these malicious UDP packets to the
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Squid server, leading to 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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Disable SNMP support or filter the port that has SNMP processing
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(default is 3401) to allow only SNMP data from trusted hosts.
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</p>
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<p>
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To disable SNMP support put the entry snmp_port 0 in the squid.conf
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configuration file.
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</p>
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<p>
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To allow only the local interface to process SNMP, add the entry
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"snmp_incoming_address 127.0.0.1" in the squid.conf configuration file.
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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 Squid 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-proxy/squid-2.5.7"
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# emerge ">=net-proxy/squid-2.5.7"</code>
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</resolution>
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<references>
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<uri link="http://www.idefense.com/application/poi/display?id=152&type=vulnerabilities&flashstatus=true">iDEFENSE Advisory</uri>
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<uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0918">CVE-2004-0918</uri>
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</references>
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<metadata tag="requester" timestamp="Sun, 17 Oct 2004 17:38:48 +0000">
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koon
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</metadata>
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<metadata tag="bugReady" timestamp="Sun, 17 Oct 2004 17:38:55 +0000">
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koon
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</metadata>
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<metadata tag="submitter" timestamp="Sun, 17 Oct 2004 18:44:11 +0000">
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lewk
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</metadata>
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</glsa>
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