USN-1844-1: Linux kernel vulnerability

Releases

• Ubuntu 12.04

Packages

• linux - Linux kernel

Details

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

• linux-image-3.2.0-45-generic - 3.2.0-45.70
• linux-image-3.2.0-45-powerpc-smp - 3.2.0-45.70
• linux-image-3.2.0-45-virtual - 3.2.0-45.70
• linux-image-3.2.0-45-highbank - 3.2.0-45.70
• linux-image-3.2.0-45-omap - 3.2.0-45.70
• linux-image-3.2.0-45-generic-pae - 3.2.0-45.70
• linux-image-3.2.0-45-powerpc64-smp - 3.2.0-45.70

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.

References

• CVE-2013-2850

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-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-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-powerpc-smp, linux, linux-image-3.5.0-32-highbank, linux-image-3.5.0-32-powerpc64-smp, linux-image-3.5.0-32-omap, linux-image-3.5.0-32-generic