USN-1578-1: Linux kernel (OMAP4) vulnerabilities

Ubuntu Security Notice USN-1578-1

21st September, 2012

linux-ti-omap4 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 11.10


Several security issues were fixed in the kernel.

Software description

  • linux-ti-omap4 - Linux kernel for OMAP4


Ben Hutchings reported a flaw in the Linux kernel with some network drivers
that support TSO (TCP segment offload). A local or peer user could exploit
this flaw to to cause a denial of service. (CVE-2012-3412)

Jay Fenlason and Doug Ledford discovered a bug in the Linux kernel
implementation of RDS sockets. A local unprivileged user could potentially
use this flaw to read privileged information from the kernel.

Update instructions

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

Ubuntu 11.10:
linux-image-3.0.0-1216-omap4 3.0.0-1216.28

To update your system, please follow these instructions:

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.


CVE-2012-3412, CVE-2012-3430