ubuntu-security-announce Digest, Vol 116, Issue 8

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Today's Topics:

1. [USN-2213-1] Dovecot vulnerability (Marc Deslauriers)
2. [USN-2214-1] libxml2 vulnerability (Marc Deslauriers)


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Message: 1
Date: Thu, 15 May 2014 11:02:00 -0400
From: Marc Deslauriers <marc.deslauriers@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-2213-1] Dovecot vulnerability
Message-ID: <5374D6E8.3000607@canonical.com>
Content-Type: text/plain; charset="utf-8"

==========================================================================
Ubuntu Security Notice USN-2213-1
May 15, 2014

dovecot vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS
- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

Dovecot could be made to stop responding if it received specially crafted
network traffic.

Software Description:
- dovecot: IMAP and POP3 email server

Details:

It was discovered that Dovecot incorrectly handled closing inactive SSL/TLS
connections. A remote attacker could use this issue to cause Dovecot to
stop responding to new connections, resulting in a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS:
dovecot-core 1:2.2.9-1ubuntu2.1
dovecot-imapd 1:2.2.9-1ubuntu2.1
dovecot-pop3d 1:2.2.9-1ubuntu2.1

Ubuntu 13.10:
dovecot-core 1:2.1.7-7ubuntu3.1
dovecot-imapd 1:2.1.7-7ubuntu3.1
dovecot-pop3d 1:2.1.7-7ubuntu3.1

Ubuntu 12.10:
dovecot-core 1:2.1.7-1ubuntu2.1
dovecot-imapd 1:2.1.7-1ubuntu2.1
dovecot-pop3d 1:2.1.7-1ubuntu2.1

Ubuntu 12.04 LTS:
dovecot-core 1:2.0.19-0ubuntu2.1
dovecot-imapd 1:2.0.19-0ubuntu2.1
dovecot-pop3d 1:2.0.19-0ubuntu2.1

Ubuntu 10.04 LTS:
dovecot-imapd 1:1.2.9-1ubuntu6.6
dovecot-pop3d 1:1.2.9-1ubuntu6.6

In general, a standard system update will make all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2213-1
CVE-2014-3430

Package Information:
https://launchpad.net/ubuntu/+source/dovecot/1:2.2.9-1ubuntu2.1
https://launchpad.net/ubuntu/+source/dovecot/1:2.1.7-7ubuntu3.1
https://launchpad.net/ubuntu/+source/dovecot/1:2.1.7-1ubuntu2.1
https://launchpad.net/ubuntu/+source/dovecot/1:2.0.19-0ubuntu2.1
https://launchpad.net/ubuntu/+source/dovecot/1:1.2.9-1ubuntu6.6


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Message: 2
Date: Thu, 15 May 2014 14:01:22 -0400
From: Marc Deslauriers <marc.deslauriers@canonical.com>
To: ubuntu-security-announce@lists.ubuntu.com
Subject: [USN-2214-1] libxml2 vulnerability
Message-ID: <537500F2.2050509@canonical.com>
Content-Type: text/plain; charset="utf-8"

==========================================================================
Ubuntu Security Notice USN-2214-1
May 15, 2014

libxml2 vulnerability
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 14.04 LTS
- Ubuntu 13.10
- Ubuntu 12.10
- Ubuntu 12.04 LTS
- Ubuntu 10.04 LTS

Summary:

libxml2 could be made to consume resources if it processed a specially
crafted file.

Software Description:
- libxml2: GNOME XML library

Details:

Daniel Berrange discovered that libxml2 would incorrectly perform entity
substitution even when requested not to. If a user or automated system were
tricked into opening a specially crafted document, an attacker could
possibly cause resource consumption, resulting in a denial of service.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 14.04 LTS:
libxml2 2.9.1+dfsg1-3ubuntu4.1

Ubuntu 13.10:
libxml2 2.9.1+dfsg1-3ubuntu2.1

Ubuntu 12.10:
libxml2 2.8.0+dfsg1-5ubuntu2.5

Ubuntu 12.04 LTS:
libxml2 2.7.8.dfsg-5.1ubuntu4.7

Ubuntu 10.04 LTS:
libxml2 2.7.6.dfsg-1ubuntu1.11

After a standard system update you need to reboot your computer to make
all the necessary changes.

References:
http://www.ubuntu.com/usn/usn-2214-1
CVE-2014-0191

Package Information:
https://launchpad.net/ubuntu/+source/libxml2/2.9.1+dfsg1-3ubuntu4.1
https://launchpad.net/ubuntu/+source/libxml2/2.9.1+dfsg1-3ubuntu2.1
https://launchpad.net/ubuntu/+source/libxml2/2.8.0+dfsg1-5ubuntu2.5
https://launchpad.net/ubuntu/+source/libxml2/2.7.8.dfsg-5.1ubuntu4.7
https://launchpad.net/ubuntu/+source/libxml2/2.7.6.dfsg-1ubuntu1.11


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