Local root privilege escalations.
Ben Hawkes discovered that the Linux kernel did not correctly validate memory ranges on 64bit kernels when allocating memory on behalf of 32bit system calls. On a 64bit system, a local attacker could perform malicious multicast getsockopt calls to gain root privileges. (CVE-2010-3081)
17 September 2010
A security issue affects these releases of Ubuntu and its derivatives:
Local root privilege escalations.
Ben Hawkes discovered that the Linux kernel did not correctly validate memory ranges on 64bit kernels when allocating memory on behalf of 32bit system calls. On a 64bit system, a local attacker could perform malicious multicast getsockopt calls to gain root privileges. (CVE-2010-3081)
Ben Hawkes discovered that the Linux kernel did not correctly filter registers on 64bit kernels when performing 32bit system calls. On a 64bit system, a local attacker could manipulate 32bit system calls to gain root privileges. (Ubuntu 6.06 LTS and 8.04 LTS were not affected.) (CVE-2010-3301)
The problem can be corrected by updating your system to the following package versions:
To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.
After a standard system update you need to reboot your computer to make all the necessary changes.
Vulmon