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<?xml version="1.0" encoding="utf-8"?>
<glsa id="200701-13">
<title>Fetchmail: Denial of Service and password disclosure</title>
Fetchmail has been found to have numerous vulnerabilities allowing for
Denial of Service and password disclosure.
<product type="ebuild">fetchmail</product>
<announced>January 22, 2007</announced>
<revised>January 22, 2007: 01</revised>
<package name="net-mail/fetchmail" auto="yes" arch="*">
<unaffected range="ge">6.3.6</unaffected>
<vulnerable range="lt">6.3.6</vulnerable>
Fetchmail is a remote mail retrieval and forwarding utility.
Neil Hoggarth has discovered that when delivering messages to a message
delivery agent by means of the "mda" option, Fetchmail passes a NULL
pointer to the ferror() and fflush() functions when refusing a message.
Isaac Wilcox has discovered numerous means of plain-text password
disclosure due to errors in secure connection establishment.
<impact type="normal">
An attacker could deliver a message via Fetchmail to a message delivery
agent configured to refuse the message, and crash the Fetchmail
process. SMTP and LMTP delivery modes are not affected by this
vulnerability. An attacker could also perform a Man-in-the-Middle
attack, and obtain plain-text authentication credentials of users
connecting to a Fetchmail process.
There is no known workaround at this time.
All fetchmail users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose &quot;&gt;=net-mail/fetchmail-6.3.6&quot;</code>
<uri link="">CVE-2006-5867</uri>
<uri link="">CVE-2006-5974</uri>
<metadata tag="requester" timestamp="Mon, 15 Jan 2007 23:33:39 +0000">
<metadata tag="bugReady" timestamp="Tue, 16 Jan 2007 17:08:58 +0000">
<metadata tag="submitter" timestamp="Thu, 18 Jan 2007 02:05:45 +0000">