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From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <91609fdb-530e-50a3-fc30-7f90c39d671a@canonical.com>
Subject: [USN-3317-1] Irssi vulnerabilities

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==========================================================================
Ubuntu Security Notice USN-3317-1
June 12, 2017

irssi vulnerabilities
==========================================================================

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

- Ubuntu 17.04
- Ubuntu 16.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

Irssi could be made to crash if it received specially crafted network
traffic.

Software Description:
- irssi: terminal based IRC client

Details:

It was discovered that Irssi incorrectly handled certain DCC messages. A
malicious IRC server could use this issue to cause Irssi to crash,
resulting in a denial of service. (CVE-2017-9468)

Joseph Bisch discovered that Irssi incorrectly handled receiving
incorrectly quoted DCC files. A remote attacker could possibly use this
issue to cause Irssi to crash, resulting in a denial of service.
(CVE-2017-9469)

Update instructions:

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

Ubuntu 17.04:
  irssi                           0.8.20-2ubuntu2.1

Ubuntu 16.10:
  irssi                           0.8.19-1ubuntu2.2

Ubuntu 16.04 LTS:
  irssi                           0.8.19-1ubuntu1.4

Ubuntu 14.04 LTS:
  irssi                           0.8.15-5ubuntu3.2

After a standard system update you need to restart Irssi to make all the
necessary changes.

References:
  https://www.ubuntu.com/usn/usn-3317-1
  CVE-2017-9468, CVE-2017-9469

Package Information:
  https://launchpad.net/ubuntu/+source/irssi/0.8.20-2ubuntu2.1
  https://launchpad.net/ubuntu/+source/irssi/0.8.19-1ubuntu2.2
  https://launchpad.net/ubuntu/+source/irssi/0.8.19-1ubuntu1.4
  https://launchpad.net/ubuntu/+source/irssi/0.8.15-5ubuntu3.2



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