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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="200408-02">
+ <title>Courier: Cross-site scripting vulnerability in SqWebMail</title>
+ <synopsis>
+ The SqWebMail web application, included in the Courier suite, is vulnerable
+ to cross-site scripting attacks.
+ </synopsis>
+ <product type="ebuild">Courier</product>
+ <announced>August 04, 2004</announced>
+ <revised>August 04, 2004: 01</revised>
+ <bug>58020</bug>
+ <access>remote</access>
+ <affected>
+ <package name="mail-mta/courier" auto="yes" arch="*">
+ <unaffected range="ge">0.45.6.20040618</unaffected>
+ <vulnerable range="le">0.45.6</vulnerable>
+ </package>
+ </affected>
+ <background>
+ <p>
+ Courier is an integrated mail and groupware server based on open protocols.
+ It provides ESMTP, IMAP, POP3, webmail, and mailing list services within a
+ single framework. The webmail functionality included in Courier called
+ SqWebMail allows you to access mailboxes from a web browser.
+ </p>
+ </background>
+ <description>
+ <p>
+ Luca Legato found that SqWebMail is vulnerable to a cross-site scripting
+ (XSS) attack. An XSS attack allows an attacker to insert malicious code
+ into a web-based application. SqWebMail doesn't filter appropriately data
+ coming from message headers before displaying them.
+ </p>
+ </description>
+ <impact type="normal">
+ <p>
+ By sending a carefully crafted message, an attacker can inject and execute
+ script code in the victim's browser window. This allows to modify the
+ behaviour of the SqWebMail application, and/or leak session information
+ such as cookies to the attacker.
+ </p>
+ </impact>
+ <workaround>
+ <p>
+ There is no known workaround at this time. All users are encouraged to
+ upgrade to the latest available version of Courier.
+ </p>
+ </workaround>
+ <resolution>
+ <p>
+ All Courier users should upgrade to the latest version:
+ </p>
+ <code>
+ # emerge sync
+
+ # emerge -pv ">=mail-mta/courier-0.45.6.20040618"
+ # emerge ">=mail-mta/courier-0.45.6.20040618"</code>
+ </resolution>
+ <references>
+ <uri link="http://cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0591">CAN-2004-0591</uri>
+ <uri link="http://www.cert.org/advisories/CA-2000-02.html">XSS definition</uri>
+ </references>
+ <metadata tag="requester">
+ koon
+ </metadata>
+ <metadata tag="submitter" timestamp="Tue, 3 Aug 2004 15:23:08 +0000">
+ koon
+ </metadata>
+</glsa>