RHBA-2013:0524 - Bug Fix Advisory

Topic

Updated tboot packages that fix two bugs are now available for Red Hat
Enterprise Linux 6.

Description

The tboot packages provide the Trusted Boot (tboot) open source pre-kernel/VMM
module. This module uses Intel Trusted Execution Technology (Intel TXT) to
initialize the launch of operating system kernels and virtual machines.

This update fixes the following bugs:

• Due to an error in the underlying source code, a buffer overflow could occur

and an attempt to boot the kernel with tboot enabled could fail with the
following error:

Kernel panic - not syncing: Too many boot init vars at `numbers,'

This update applies an upstream patch that corrects this error, and the kernel
now boots as expected. (BZ#885684)

• Prior to this update, the installed README file incorrectly identified the

supported kernels. This update corrects this file and ensures that it no longer
contains incorrect information. (BZ#834323)

All users of tboot are advised to upgrade to these updated packages, which fix
these bugs.

Solution

Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at
https://access.redhat.com/knowledge/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64

Fixes

CVEs

(none)

References

(none)