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authorAlex Legler <alex@a3li.li>2015-03-08 22:02:38 +0100
committerAlex Legler <alex@a3li.li>2015-03-08 22:02:38 +0100
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Import existing advisories
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+<?xml version="1.0" encoding="utf-8"?>
+<?xml-stylesheet href="/xsl/glsa.xsl" type="text/xsl"?>
+<?xml-stylesheet href="/xsl/guide.xsl" type="text/xsl"?>
+<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
+
+<glsa id="200410-15">
+ <title>Squid: Remote DoS vulnerability</title>
+ <synopsis>
+ Squid contains a vulnerability in the SNMP module which may lead to a
+ denial of service.
+ </synopsis>
+ <product type="ebuild">squid</product>
+ <announced>October 18, 2004</announced>
+ <revised>December 30, 2007: 03</revised>
+ <bug>67167</bug>
+ <access>remote</access>
+ <affected>
+ <package name="net-proxy/squid" auto="yes" arch="*">
+ <unaffected range="ge">2.5.7</unaffected>
+ <vulnerable range="lt">2.5.7</vulnerable>
+ </package>
+ </affected>
+ <background>
+ <p>
+ Squid is a full-featured Web proxy cache designed to run on Unix
+ systems. It supports proxying and caching of HTTP, FTP, and other URLs,
+ as well as SSL support, cache hierarchies, transparent caching, access
+ control lists and many other features.
+ </p>
+ </background>
+ <description>
+ <p>
+ A parsing error exists in the SNMP module of Squid where a
+ specially-crafted UDP packet can potentially cause the server to
+ restart, closing all current connections. This vulnerability only
+ exists in versions of Squid compiled with the 'snmp' USE flag.
+ </p>
+ </description>
+ <impact type="normal">
+ <p>
+ An attacker can repeatedly send these malicious UDP packets to the
+ Squid server, leading to a denial of service.
+ </p>
+ </impact>
+ <workaround>
+ <p>
+ Disable SNMP support or filter the port that has SNMP processing
+ (default is 3401) to allow only SNMP data from trusted hosts.
+ </p>
+ <p>
+ To disable SNMP support put the entry snmp_port 0 in the squid.conf
+ configuration file.
+ </p>
+ <p>
+ To allow only the local interface to process SNMP, add the entry
+ "snmp_incoming_address 127.0.0.1" in the squid.conf configuration file.
+ </p>
+ </workaround>
+ <resolution>
+ <p>
+ All Squid users should upgrade to the latest version:
+ </p>
+ <code>
+ # emerge sync
+
+ # emerge -pv &quot;&gt;=net-proxy/squid-2.5.7&quot;
+ # emerge &quot;&gt;=net-proxy/squid-2.5.7&quot;</code>
+ </resolution>
+ <references>
+ <uri link="http://www.idefense.com/application/poi/display?id=152&amp;type=vulnerabilities&amp;flashstatus=true">iDEFENSE Advisory</uri>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0918">CVE-2004-0918</uri>
+ </references>
+ <metadata tag="requester" timestamp="Sun, 17 Oct 2004 17:38:48 +0000">
+ koon
+ </metadata>
+ <metadata tag="bugReady" timestamp="Sun, 17 Oct 2004 17:38:55 +0000">
+ koon
+ </metadata>
+ <metadata tag="submitter" timestamp="Sun, 17 Oct 2004 18:44:11 +0000">
+ lewk
+ </metadata>
+</glsa>