Ubuntu Security Notice USN-2462-1
13th January, 2015
linux vulnerabilities
A security issue affects these releases of Ubuntu and its
derivatives:
- Ubuntu 10.04 LTS
Summary
Several security issues were fixed in the kernel.
Software description
- linux
– Linux kernel
Details
Lars Bull reported a race condition in the PIT (programmable interrupt
timer) emulation in the KVM (Kernel Virtual Machine) subsystem of the Linux
kernel. A local guest user with access to PIT i/o ports could exploit this
flaw to cause a denial of service (crash) on the host. (CVE-2014-3611)
Lars Bull and Nadav Amit reported a flaw in how KVM (the Kernel Virtual
Machine) handles noncanonical writes to certain MSR registers. A privileged
guest user can exploit this flaw to cause a denial of service (kernel
panic) on the host. (CVE-2014-3610)
Update instructions
The problem can be corrected by updating your system to the following
package version:
- Ubuntu 10.04 LTS:
-
linux-image-2.6.32-71-powerpc-smp
2.6.32-71.138
-
linux-image-2.6.32-71-versatile
2.6.32-71.138
-
linux-image-2.6.32-71-server
2.6.32-71.138
-
linux-image-2.6.32-71-powerpc64-smp
2.6.32-71.138
-
linux-image-2.6.32-71-lpia
2.6.32-71.138
-
linux-image-2.6.32-71-386
2.6.32-71.138
-
linux-image-2.6.32-71-generic-pae
2.6.32-71.138
-
linux-image-2.6.32-71-sparc64-smp
2.6.32-71.138
-
linux-image-2.6.32-71-preempt
2.6.32-71.138
-
linux-image-2.6.32-71-sparc64
2.6.32-71.138
-
linux-image-2.6.32-71-ia64
2.6.32-71.138
-
linux-image-2.6.32-71-virtual
2.6.32-71.138
-
linux-image-2.6.32-71-generic
2.6.32-71.138
-
linux-image-2.6.32-71-powerpc
2.6.32-71.138
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.
ATTENTION: Due to an unavoidable ABI change the kernel updates have
been given a new version number, which requires you to recompile and
reinstall all third party kernel modules you might have installed. If
you use linux-restricted-modules, you have to update that package as
well to get modules which work with the new kernel version. Unless you
manually uninstalled the standard kernel metapackages (e.g. linux-generic,
linux-server, linux-powerpc), a standard system upgrade will automatically
perform this as well.