Issued:

2013-02-20

Updated:

2013-02-20

RHBA-2013:0524 - tboot bug fix update

Synopsis

tboot bug fix update

Type/Severity

Bug Fix Advisory (none)

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

Updated Packages

• tboot-debuginfo-1.7.0-4.el6.x86_64.rpm
• tboot-1.7.0-4.el6.x86_64.rpm
• tboot-1.7.0-4.el6.src.rpm

Fixes

(none)

CVEs

(none)

References

(none)

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.