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gentoo-overlay/metadata/glsa/glsa-200403-06.xml

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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE glsa SYSTEM "http://www.gentoo.org/dtd/glsa.dtd">
<glsa id="200403-06">
<title>Multiple remote buffer overflow vulnerabilities in Courier</title>
<synopsis>
Remote buffer overflow vulnerabilities have been found in Courier-IMAP and
Courier MTA. These exploits may allow the execution of abritrary code,
allowing unauthorized access to a vulnerable system.
</synopsis>
<product type="ebuild">Courier</product>
<announced>March 26, 2004</announced>
<revised>March 26, 2004: 01</revised>
<bug>45584</bug>
<access>remote</access>
<affected>
<package name="net-mail/courier-imap" auto="yes" arch="*">
<unaffected range="ge">3.0.0</unaffected>
<vulnerable range="lt">3.0.0</vulnerable>
</package>
<package name="mail-mta/courier" auto="yes" arch="*">
<unaffected range="ge">0.45</unaffected>
<vulnerable range="lt">0.45</vulnerable>
</package>
</affected>
<background>
<p>
Courier MTA is a multiprotocol mail server suite that provides webmail,
mailing lists, IMAP, and POP3 services. Courier-IMAP is a standalone server
that gives IMAP access to local mailboxes.
</p>
</background>
<description>
<p>
The vulnerabilities have been found in the 'SHIFT_JIS' converter in
'shiftjis.c' and 'ISO2022JP' converter in 'so2022jp.c'. An attacker may
supply Unicode characters that exceed BMP (Basic Multilingual Plane) range,
causing an overflow.
</p>
</description>
<impact type="normal">
<p>
An attacker without privileges may exploit this vulnerability remotely, allowing arbitrary code to be executed in order to gain unauthorized access.
</p>
</impact>
<workaround>
<p>
While a workaround is not currently known for this issue, all users are
advised to upgrade to the latest version of the affected packages.
</p>
</workaround>
<resolution>
<p>
All users should upgrade to current versions of the affected packages:
</p>
<code>
# emerge sync
# emerge -pv ">=net-mail/courier-imap-3.0.0"
# emerge ">=net-mail/courier-imap-3.0.0"
# ** Or; depending on your installation... **
# emerge -pv ">=mail-mta/courier-0.45"
# emerge ">=mail-mta/courier-0.45"
</code>
</resolution>
<references>
<uri link="http://www.securityfocus.com/bid/9845">Courier Multiple Remote Buffer Overflow Vulnerabilities</uri>
<uri link="http://www.cve.mitre.org/cgi-bin/cvename.cgi?name=CAN-2004-0224">CAN-2004-0224</uri>
</references>
</glsa>