bugtraq - [SECURITY] [DSA 2377-1] cyrus-imapd-2.2 security update

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Message-ID: <20120101235128.GA14372@ngolde.de>
Date: Mon, 2 Jan 2012 00:51:28 +0100
From: Nico Golde <nion@...ian.org>
To: bugtraq@...urityfocus.com
Subject: [SECURITY] [DSA 2377-1] cyrus-imapd-2.2 security update

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Debian Security Advisory DSA-2377-1                     security@...ian.org
http://www.debian.org/security/                                  Nico Golde
Jan 1st, 2012                            http://www.debian.org/security/faq
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Package        : cyrus-imapd-2.2
Vulnerability  : NULL pointer dereference
Problem type   : remote
Debian-specific: no
CVE IDs        : CVE-2011-3481

It was discovered that cyrus-imapd, a highly scalable mail system designed
for use in enterprise environments, is not properly parsing mail headers
when a client makes use of the IMAP threading feature.  As a result, a NULL
pointer is dereferenced which crashes the daemon.  An attacker can trigger
this by sending a mail containing crafted reference headers and access the
mail with a client that uses the server threading feature of IMAP.

For the oldstable distribution (lenny), this problem has been fixed in
version 2.2.13-14+lenny6.

For the stable distribution (squeeze), this problem has been fixed in
version 2.2.13-19+squeeze3.

For the testing (wheezy) and unstable (sid) distributions, this problem has been
fixed in cyrus-imapd-2.4 version 2.4.11-1.

We recommend that you upgrade your cyrus-imapd-2.2 packages.

Further information about Debian Security Advisories, how to apply
these updates to your system and frequently asked questions can be
found at: http://www.debian.org/security/

Mailing list: debian-security-announce@...ts.debian.org

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