Ubuntu Security Notice USN-846-1
8th October, 2009
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 9.04
- Ubuntu 8.10
- Ubuntu 8.04 LTS
It was discovered that ICU did not properly handle invalid byte sequences
during Unicode conversion. If an application using ICU processed crafted
data, content security mechanisms could be bypassed, potentially leading to
cross-site scripting (XSS) attacks.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 9.04:
- libicu38 3.8.1-3ubuntu1.1
- Ubuntu 8.10:
- libicu38 3.8.1-2ubuntu0.2
- Ubuntu 8.04 LTS:
- libicu38 3.8-6ubuntu0.2
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system upgrade you need to restart applications linked
against libicu, such as OpenOffice.org, to effect the necessary changes.