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USN-1844-1: Linux kernel vulnerability

30 May 2013

The system could be made to crash or run programs as an administrator if it received specially crafted network traffic.




Kees Cook discovered a flaw in the Linux kernel's iSCSI subsystem. A remote
unauthenticated attacker could exploit this flaw to cause a denial of
service (system crash) or potentially gain administrative privileges.

Update instructions

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

Ubuntu 12.04

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.


Related notices

  • USN-1883-1: linux-ti-omap4, linux-image-3.5.0-226-omap4
  • USN-1879-1: linux-ti-omap4, linux-image-3.2.0-1433-omap4
  • USN-1845-1: linux-lts-quantal, linux-image-3.5.0-32-generic
  • USN-1847-1: linux-image-3.8.0-23-generic, linux
  • USN-1882-1: linux-ti-omap4, linux-image-3.5.0-226-omap4
  • USN-1849-1: linux-image-3.8.0-23-generic, linux-lts-raring
  • USN-1846-1: linux-image-3.5.0-32-generic, linux-image-3.5.0-32-powerpc64-smp, linux-image-3.5.0-32-highbank, linux-image-3.5.0-32-powerpc-smp, linux-image-3.5.0-32-omap, linux