About Ubuntu

=========================================================== Ubuntu Security Notice USN-692-1 December 17, 2008 ekg, libgadu vulnerability CVE-2008-4776 =========================================================== A security issue affects the following Ubuntu releases: Ubuntu 6.06 LTS Ubuntu 7.10 Ubuntu 8.04 LTS Ubuntu 8.10 This advisory also applies to the corresponding versions of Kubuntu, Edubuntu, and Xubuntu. The problem can be corrected by upgrading your system to the following package versions: Ubuntu 6.06 LTS: libgadu3 1:1.6+20051103-1ubuntu1.1 Ubuntu 7.10: libgadu3 1:1.7~rc2-2ubuntu0.7.10.1 Ubuntu 8.04 LTS: libgadu3 1:1.7~rc2-2ubuntu0.8.04.1 Ubuntu 8.10: libgadu3 1:1.8.0+r592-1ubuntu0.1 After a standard system upgrade you need to restart your session to effect the necessary changes. Details follow: It was discovered that the Gadu library, used by some Instant Messaging clients, did not correctly verify certain packet sizes from the server. If a user connected to a malicious server, clients using Gadu could be made to crash, leading to a denial of service.