Ubuntu security bulletins (USN-518-1 - Kernel vulnerabilities)

USN-518-1: Linux kernel vulnerabilities
Threat-level (*): moderate

Affected Ubuntu versions:

• Ubuntu 6.06 LTS
• Ubuntu 6.10
• Ubuntu 7.04
• (and the corresponding versions of Kubuntu, Edubuntu, and Xubuntu)

It's strongly recommended that you perform (at least) a standard system upgrade to avoid possible:

• Local attacks based on ptrace routines, with the following consequences:
• denial of service
  
• Local attacks on PowerPC computers, with the following consequences:
• denial of service
• Local attacks performed exploiting a CIFS filesystems vulnerability, with the following consequences:
• privileges escalation (gain of additional privileges on the local system)
• Local attacks that exploits some x86_64 kernels vulnerabilities, with the following consequences:
• privileges escalation (gain of root privileges on the local system)
  

NOTE: After the upgrade for the changes to affect your system you must restart your computer.

________
(*) = IMHO = It's just my opinion...