USN-1577-1: Linux kernel (OMAP4) vulnerabilities

21 September 2012

Several security issues were fixed in the kernel.

Releases

Packages

  • linux-ti-omap4 - Linux kernel for OMAP4

Details

A flaw was discovered in the Linux kernel's KVM (kernel virtual machine).
An administrative user in the guest OS could leverage this flaw to cause a
denial of service in the host OS. (CVE-2012-2121)

Ben Hutchings reported a flaw in the Linux kernel with some network drivers
that support TSO (TCP segment offload). A local or peer user could exploit
this flaw to to cause a denial of service. (CVE-2012-3412)

Jay Fenlason and Doug Ledford discovered a bug in the Linux kernel
implementation of RDS sockets. A local unprivileged user could potentially
use this flaw to read privileged information from the kernel.
(CVE-2012-3430)

A flaw was discovered in the madvise feature of the Linux kernel's memory
subsystem. An unprivileged local use could exploit the flaw to cause a
denial of service (crash the system). (CVE-2012-3511)

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 11.04

After a standard system update you need to reboot your computer to make
all the necessary changes.

Related notices

  • USN-1457-1: linux-image-2.6.38-15-generic, linux-image-2.6.38-15-omap, linux-image-2.6.38-15-virtual, linux-image-2.6.38-15-powerpc-smp, linux-image-2.6.38-15-versatile, linux-image-2.6.38-15-server, linux-image-2.6.38-15-generic-pae, linux-image-2.6.38-15-powerpc64-smp, linux, linux-image-2.6.38-15-powerpc
  • USN-1514-1: linux-ti-omap4, linux-image-3.2.0-1417-omap4
  • USN-1578-1: linux-ti-omap4, linux-image-3.0.0-1216-omap4
  • USN-1580-1: linux-ti-omap4, linux-image-3.2.0-1419-omap4
  • USN-1476-1: linux-ti-omap4, linux-image-3.0.0-1211-omap4
  • USN-1568-1: linux-image-3.0.0-26-server, linux-image-3.0.0-26-powerpc64-smp, linux-image-3.0.0-26-generic-pae, linux-image-3.0.0-26-omap, linux-image-3.0.0-26-powerpc-smp, linux-image-3.0.0-26-powerpc, linux-image-3.0.0-26-virtual, linux-image-3.0.0-26-generic, linux
  • USN-2036-1: linux-image-2.6.32-54-sparc64-smp, linux-image-2.6.32-54-sparc64, linux-image-2.6.32-54-versatile, linux-image-2.6.32-54-powerpc-smp, linux-image-2.6.32-54-ia64, linux-image-2.6.32-54-server, linux-image-2.6.32-54-powerpc, linux-image-2.6.32-54-generic-pae, linux-image-2.6.32-54-powerpc64-smp, linux-image-2.6.32-54-virtual, linux-image-2.6.32-54-lpia, linux-image-2.6.32-54-preempt, linux-image-2.6.32-54-generic, linux-image-2.6.32-54-386, linux
  • USN-1567-1: linux, linux-image-2.6.38-16-server, linux-image-2.6.38-16-powerpc64-smp, linux-image-2.6.38-16-versatile, linux-image-2.6.38-16-omap, linux-image-2.6.38-16-powerpc-smp, linux-image-2.6.38-16-generic-pae, linux-image-2.6.38-16-powerpc, linux-image-2.6.38-16-virtual, linux-image-2.6.38-16-generic
  • USN-1575-1: linux-image-3.0.0-26-server, linux-image-3.0.0-26-generic-pae, linux-image-3.0.0-26-virtual, linux-image-3.0.0-26-generic, linux-lts-backport-oneiric
  • USN-1579-1: linux-image-3.2.0-31-virtual, linux-image-3.2.0-31-powerpc64-smp, linux-image-3.2.0-31-generic, linux-image-3.2.0-31-powerpc-smp, linux-image-3.2.0-31-highbank, linux-image-3.2.0-31-generic-pae, linux, linux-image-3.2.0-31-omap
  • USN-1472-1: linux-image-3.0.0-21-powerpc64-smp, linux-image-3.0.0-21-omap, linux-image-3.0.0-21-powerpc-smp, linux-image-3.0.0-21-generic-pae, linux-image-3.0.0-21-server, linux-image-3.0.0-21-virtual, linux-image-3.0.0-21-powerpc, linux, linux-image-3.0.0-21-generic
  • USN-1532-1: linux-ti-omap4, linux-image-3.0.0-1214-omap4
  • USN-1473-1: linux-image-3.2.0-25-omap, linux-image-3.2.0-25-powerpc-smp, linux-image-3.2.0-25-virtual, linux-image-3.2.0-25-generic-pae, linux-image-3.2.0-25-generic, linux-image-3.2.0-25-powerpc64-smp, linux-image-3.2.0-25-highbank, linux
  • USN-1574-1: linux-image-2.6.38-16-server, linux-lts-backport-natty, linux-image-2.6.38-16-generic-pae, linux-image-2.6.38-16-virtual, linux-image-2.6.38-16-generic
  • USN-1539-1: linux-image-3.0.0-24-server, linux-image-3.0.0-24-virtual, linux-image-3.0.0-24-generic-pae, linux-image-3.0.0-24-generic, linux-lts-backport-oneiric
  • USN-1470-1: linux-image-2.6.38-15-generic, linux-image-2.6.38-15-virtual, linux-lts-backport-natty, linux-image-2.6.38-15-generic-pae, linux-image-2.6.38-15-server
  • USN-1533-1: linux-image-3.0.0-24-server, linux-image-3.0.0-24-powerpc-smp, linux-image-3.0.0-24-virtual, linux-image-3.0.0-24-powerpc, linux-image-3.0.0-24-generic-pae, linux-image-3.0.0-24-powerpc64-smp, linux-image-3.0.0-24-generic, linux, linux-image-3.0.0-24-omap
  • USN-1573-1: linux-ec2, linux-image-2.6.32-348-ec2
  • USN-1572-1: linux-image-2.6.32-43-ia64, linux-image-2.6.32-43-powerpc, linux-image-2.6.32-43-powerpc-smp, linux-image-2.6.32-43-server, linux-image-2.6.32-43-386, linux-image-2.6.32-43-sparc64-smp, linux-image-2.6.32-43-powerpc64-smp, linux-image-2.6.32-43-sparc64, linux-image-2.6.32-43-lpia, linux-image-2.6.32-43-generic-pae, linux-image-2.6.32-43-versatile, linux-image-2.6.32-43-virtual, linux-image-2.6.32-43-generic, linux, linux-image-2.6.32-43-preempt
  • USN-1529-1: linux-image-3.2.0-29-virtual, linux-image-3.2.0-29-powerpc-smp, linux-image-3.2.0-29-highbank, linux-image-3.2.0-29-generic-pae, linux-image-3.2.0-29-generic, linux-image-3.2.0-29-powerpc64-smp, linux, linux-image-3.2.0-29-omap
  • USN-1471-1: linux-image-3.0.0-21-generic-pae, linux-image-3.0.0-21-server, linux-image-3.0.0-21-virtual, linux-image-3.0.0-21-generic, linux-lts-backport-oneiric
  • USN-1474-1: linux-image-3.2.0-1414-omap4, linux-ti-omap4
  • USN-2037-1: linux-ec2, linux-image-2.6.32-359-ec2