[USN-3610-1] ICU vulnerability

[Marc Deslauriers]

==========================================================================
Ubuntu Security Notice USN-3610-1
March 28, 2018

icu vulnerability
==========================================================================

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

- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS

Summary:

ICU could be made to crash if it received specially crafted input.

Software Description:
- icu: International Components for Unicode library

Details:

It was discovered that ICU incorrectly handled certain calendars. If an
application using ICU processed crafted data, a remote attacker could
possibly cause it to crash, leading to a denial of service.

Update instructions:

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

Ubuntu 17.10:
  libicu57                        57.1-6ubuntu0.3

Ubuntu 16.04 LTS:
  libicu55                        55.1-7ubuntu0.4

Ubuntu 14.04 LTS:
  libicu52                        52.1-3ubuntu0.8

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

References:
  https://usn.ubuntu.com/usn/usn-3610-1
  CVE-2017-15422

Package Information:
  https://launchpad.net/ubuntu/+source/icu/57.1-6ubuntu0.3
  https://launchpad.net/ubuntu/+source/icu/55.1-7ubuntu0.4
  https://launchpad.net/ubuntu/+source/icu/52.1-3ubuntu0.8

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