Ubuntu Security Notice USN-1345-1
24th January, 2012
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 11.04
Several security issues were fixed in the kernel.
- linux - Linux kernel
Peter Huewe discovered an information leak in the handling of reading
security-related TPM data. A local, unprivileged user could read the
results of a previous TPM command. (CVE-2011-1162)
Clement Lecigne discovered a bug in the HFS filesystem. A local attacker
could exploit this to cause a kernel oops. (CVE-2011-2203)
A flaw was found in how the Linux kernel handles user-defined key types. An
unprivileged local user could exploit this to crash the system.
The problem can be corrected by updating your system to the following package version:
- Ubuntu 11.04:
- linux-image-2.6.38-13-powerpc 2.6.38-13.54
- linux-image-2.6.38-13-powerpc64-smp 2.6.38-13.54
- linux-image-2.6.38-13-generic-pae 2.6.38-13.54
- linux-image-2.6.38-13-versatile 2.6.38-13.54
- linux-image-2.6.38-13-generic 2.6.38-13.54
- linux-image-2.6.38-13-virtual 2.6.38-13.54
- linux-image-2.6.38-13-server 2.6.38-13.54
- linux-image-2.6.38-13-omap 2.6.38-13.54
- linux-image-2.6.38-13-powerpc-smp 2.6.38-13.54
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.