USN-1531-1: Linux kernel vulnerabilities

10 August 2012

Several security issues were fixed in the kernel.

Releases

Packages

  • linux - Linux kernel

Details

An error was discovered in the Linux kernel's network TUN/TAP device
implementation. A local user with access to the TUN/TAP interface (which is
not available to unprivileged users until granted by a root user) could
exploit this flaw to crash the system or potential gain administrative
privileges. (CVE-2012-2136)

A flaw was found in the Linux kernel's Reliable Datagram Sockets (RDS)
protocol implementation. A local, unprivileged user could use this flaw to
cause a denial of service. (CVE-2012-2372)

An error was discovered in the Linux kernel's memory subsystem (hugetlb).
An unprivileged local user could exploit this flaw to cause a denial of
service (crash the system). (CVE-2012-2390)

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-1598-1: linux-image-2.6.24-32-386, linux-image-2.6.24-32-xen, linux-image-2.6.24-32-powerpc-smp, linux-image-2.6.24-32-openvz, linux-image-2.6.24-32-lpiacompat, linux, linux-image-2.6.24-32-sparc64-smp, linux-image-2.6.24-32-itanium, linux-image-2.6.24-32-lpia, linux-image-2.6.24-32-hppa32, linux-image-2.6.24-32-generic, linux-image-2.6.24-32-rt, linux-image-2.6.24-32-mckinley, linux-image-2.6.24-32-hppa64, linux-image-2.6.24-32-server, linux-image-2.6.24-32-powerpc64-smp, linux-image-2.6.24-32-powerpc, linux-image-2.6.24-32-sparc64, linux-image-2.6.24-32-virtual
  • USN-1558-1: linux-ti-omap4, linux-image-3.0.0-1215-omap4
  • USN-1556-1: linux-ec2, linux-image-2.6.32-347-ec2
  • USN-1508-1: linux-ti-omap4, linux-image-3.2.0-1416-omap4
  • USN-1514-1: linux-ti-omap4, linux-image-3.2.0-1417-omap4
  • USN-1535-1: linux-image-2.6.32-42-powerpc64-smp, linux-image-2.6.32-42-lpia, linux-image-2.6.32-42-server, linux-image-2.6.32-42-sparc64, linux-image-2.6.32-42-versatile, linux-image-2.6.32-42-virtual, linux-image-2.6.32-42-ia64, linux-image-2.6.32-42-386, linux-image-2.6.32-42-generic, linux-image-2.6.32-42-powerpc, linux-image-2.6.32-42-powerpc-smp, linux-image-2.6.32-42-sparc64-smp, linux-image-2.6.32-42-generic-pae, linux, linux-image-2.6.32-42-preempt
  • USN-1563-1: linux-image-3.0.0-25-generic, linux-image-3.0.0-25-server, linux-image-3.0.0-25-generic-pae, linux-image-3.0.0-25-virtual, linux-lts-backport-oneiric
  • USN-1538-1: linux-image-2.6.38-15-generic-pae, linux-image-2.6.38-15-virtual, linux-lts-backport-natty, linux-image-2.6.38-15-generic, linux-image-2.6.38-15-server
  • USN-1532-1: linux-ti-omap4, linux-image-3.0.0-1214-omap4
  • USN-1515-1: linux-image-3.2.0-27-omap, linux-image-3.2.0-27-generic-pae, linux-image-3.2.0-27-generic, linux-image-3.2.0-27-virtual, linux-image-3.2.0-27-powerpc64-smp, linux-image-3.2.0-27-highbank, linux-image-3.2.0-27-powerpc-smp, linux
  • USN-1555-1: linux-image-2.6.32-42-powerpc64-smp, linux-image-2.6.32-42-lpia, linux-image-2.6.32-42-server, linux-image-2.6.32-42-sparc64, linux-image-2.6.32-42-versatile, linux-image-2.6.32-42-virtual, linux-image-2.6.32-42-ia64, linux-image-2.6.32-42-386, linux-image-2.6.32-42-generic, linux-image-2.6.32-42-powerpc, linux-image-2.6.32-42-powerpc-smp, linux-image-2.6.32-42-sparc64-smp, linux-image-2.6.32-42-generic-pae, linux, linux-image-2.6.32-42-preempt
  • USN-1539-1: linux-image-3.0.0-24-virtual, linux-image-3.0.0-24-server, linux-image-3.0.0-24-generic-pae, linux-image-3.0.0-24-generic, linux-lts-backport-oneiric
  • USN-1533-1: linux-image-3.0.0-24-powerpc, linux-image-3.0.0-24-omap, linux-image-3.0.0-24-virtual, linux-image-3.0.0-24-server, linux-image-3.0.0-24-powerpc-smp, linux-image-3.0.0-24-generic-pae, linux-image-3.0.0-24-powerpc64-smp, linux-image-3.0.0-24-generic, linux
  • USN-1554-1: linux-image-3.0.0-25-generic, linux-image-3.0.0-25-powerpc64-smp, linux-image-3.0.0-25-powerpc-smp, linux-image-3.0.0-25-server, linux-image-3.0.0-25-generic-pae, linux-image-3.0.0-25-powerpc, linux-image-3.0.0-25-omap, linux-image-3.0.0-25-virtual, linux
  • USN-1534-1: linux-ec2, linux-image-2.6.32-347-ec2
  • USN-1529-1: linux-image-3.2.0-29-virtual, linux-image-3.2.0-29-omap, linux-image-3.2.0-29-powerpc-smp, linux-image-3.2.0-29-generic, linux-image-3.2.0-29-highbank, linux-image-3.2.0-29-powerpc64-smp, linux-image-3.2.0-29-generic-pae, linux
  • USN-1530-1: linux-ti-omap4, linux-image-2.6.38-1209-omap4