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Ubuntu Security Notice (C) 2005-2016 Canonical, Inc. / NASL script (C) 2006-2016 Tenable Network Security, Inc.
The remote Ubuntu host is missing a security-related patch.
Florian Weimer discovered a cross-site scripting vulnerability in
mailman's automatically generated error messages. An attacker could
HTML) which triggered a mailman error page. When an unsuspecting user
followed this URL, the malicious content was copied unmodified to the
error page and executed in the context of this page.
Juha-Matti Tapio discovered an information disclosure in the private
rosters management. Everybody could check whether a specified email
address was subscribed to a private mailing list by looking at the
error message. This bug was Ubuntu/Debian specific.
Important note :
There is currently another known vulnerability: when an user
subscribes to a mailing list without choosing a password, mailman
automatically generates one. However, there are only about 5 million
different possible passwords which allows brute-force attacks.
A different password generation algorithm already exists, but is
currently too immature to be put into a stable release security
update. Therefore it is advisable to always explicitly choose a
password for subscriptions, at least until this gets fixed in Warty
See https://bugzilla.ubuntu.com/4892 for details.
Note that Tenable Network Security has extracted the preceding
description block directly from the Ubuntu security advisory. Tenable
has attempted to automatically clean and format it as much as possible
without introducing additional issues.
Update the affected mailman package.
Risk factor :
Medium / CVSS Base Score : 4.3
Family: Ubuntu Local Security Checks
Nessus Plugin ID: 20677 ()
CVE ID: CVE-2004-1177
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