USN-1834-1: Linux kernel (Quantal HWE) vulnerabilities

24 May 2013

Several security issues were fixed in the kernel.

Releases

Packages

  • linux-lts-quantal - Linux hardware enablement kernel from Quantal

Details

A buffer overflow vulnerability was discovered in the Broadcom tg3 ethernet
driver for the Linux kernel. A local user could exploit this flaw to cause
a denial of service (crash the system) or potentially escalate privileges
on the system. (CVE-2013-1929)

A flaw was discovered in the Linux kernel's ftrace subsystem interface. A
local user could exploit this flaw to cause a denial of service (system
crash). (CVE-2013-3301)

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-1839-1: linux-ti-omap4, linux-image-3.2.0-1432-omap4
  • USN-1838-1: linux-ti-omap4, linux-image-3.5.0-225-omap4
  • USN-1835-1: linux-image-3.5.0-31-generic, linux-image-3.5.0-31-powerpc-smp, linux-image-3.5.0-31-highbank, linux, linux-image-3.5.0-31-omap, linux-image-3.5.0-31-powerpc64-smp
  • USN-1836-1: linux-ti-omap4, linux-image-3.5.0-225-omap4
  • USN-1833-1: linux-image-3.2.0-44-powerpc-smp, linux-image-3.2.0-44-virtual, linux, linux-image-3.2.0-44-powerpc64-smp, linux-image-3.2.0-44-generic, linux-image-3.2.0-44-omap, linux-image-3.2.0-44-highbank, linux-image-3.2.0-44-generic-pae