==========================================================================
Ubuntu Security Notice USN-4305-1
March 17, 2020

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

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

– Ubuntu 19.10
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
– Ubuntu 14.04 ESM
– Ubuntu 12.04 ESM

Summary:

ICU could be made to execute arbitrary code if it received a specially crafted
string.

Software Description:
– icu: International Components for Unicode library

Details:

André Bargull discovered that ICU incorrectly handled certain strings.
An attacker could possibly use this issue to execute arbitrary code.

Update instructions:

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

Ubuntu 19.10:
libicu63 63.2-2ubuntu0.1

Ubuntu 18.04 LTS:
libicu60 60.2-3ubuntu3.1

Ubuntu 16.04 LTS:
libicu55 55.1-7ubuntu0.5

Ubuntu 14.04 ESM:
libicu52 52.1-3ubuntu0.8+esm1

Ubuntu 12.04 ESM:
libicu48 4.8.1.1-3ubuntu0.10

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

References:
https://usn.ubuntu.com/4305-1
CVE-2020-10531

Package Information:
https://launchpad.net/ubuntu/+source/icu/63.2-2ubuntu0.1
https://launchpad.net/ubuntu/+source/icu/60.2-3ubuntu3.1
https://launchpad.net/ubuntu/+source/icu/55.1-7ubuntu0.5