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USN-1845-1: Linux kernel (Quantal HWE) 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-image-3.5.0-226-omap4, linux-ti-omap4
  • USN-1879-1: linux-image-3.2.0-1433-omap4, linux-ti-omap4
  • USN-1844-1: linux-image-3.2.0-45-generic, linux-image-3.2.0-45-powerpc64-smp, linux-image-3.2.0-45-powerpc-smp, linux-image-3.2.0-45-highbank, linux, linux-image-3.2.0-45-virtual, linux-image-3.2.0-45-omap, linux-image-3.2.0-45-generic-pae
  • USN-1847-1: linux-image-3.8.0-23-generic, linux
  • USN-1882-1: linux-image-3.5.0-226-omap4, linux-ti-omap4
  • USN-1849-1: linux-image-3.8.0-23-generic, linux-lts-raring
  • USN-1846-1: linux-image-3.5.0-32-highbank, linux-image-3.5.0-32-generic, linux-image-3.5.0-32-powerpc64-smp, linux-image-3.5.0-32-powerpc-smp, linux, linux-image-3.5.0-32-omap