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Ubuntu Security Notice USN-2740-1
September 16, 2015

icu vulnerabilities
============================================================================

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

- Ubuntu 15.04
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS

Summary:

Several security issues were fixed in ICU.

Software Description:
- icu: International Components for Unicode library

Details:

Atte Kettunen discovered that ICU incorrectly handled certain converter
names. If an application using ICU processed crafted data, a remote
attacker could possibly cause it to crash. (CVE-2015-1270)

It was discovered that ICU incorrectly handled certain memory operations
when processing data. If an application using ICU processed crafted data,
a remote attacker could possibly cause it to crash or potentially execute
arbitrary code with the privileges of the user invoking the program.
(CVE-2015-2632, CVE-2015-4760)

Update instructions:

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

Ubuntu 15.04:
  libicu52                        52.1-8ubuntu0.2

Ubuntu 14.04 LTS:
  libicu52                        52.1-3ubuntu0.4

Ubuntu 12.04 LTS:
  libicu48                        4.8.1.1-3ubuntu0.6

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

References:
  https://www.ubuntu.com/usn/usn-2740-1
  CVE-2015-1270, CVE-2015-2632, CVE-2015-4760

Package Information:
  https://launchpad.net/ubuntu/+source/icu/52.1-8ubuntu0.2
  https://launchpad.net/ubuntu/+source/icu/52.1-3ubuntu0.4
  https://launchpad.net/ubuntu/+source/icu/4.8.1.1-3ubuntu0.6