RHBA-2011:0082 - Bug Fix Advisory

Topic

An updated amtu package that fixes a bug is now available for Red Hat Enterprise
Linux 5.

Description

Abstract Machine Test Utility (AMTU) is an administrative utility to check
whether the underlying protection mechanism of the hardware are still being
enforced. This is a requirement of the Controlled Access Protection Profile
FPT_AMT.1.

This update fixes the following bug:

• Previously, the amtu memory separation test could fail randomly because the

way that it chose memory regions for testing had an off by one error in the
address calculation. The memory separation test tries to locate memory regions
that are readonly. Because of the miscalculation, it could try writing to a
memory location that was writable. Because it was looking for the write to fail,
it mistakenly thinks the test had failed. This update corrects this issue and
the amtu memory separation test behaves as expected. (BZ#556853)

All amtu users are advised to upgrade to this updated package, which resolves
this issue.

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
http://kbase.redhat.com/faq/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux Desktop 5 x86_64
• Red Hat Enterprise Linux Desktop 5 i386
• Red Hat Enterprise Linux for IBM z Systems 5 s390x
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

CVEs

(none)

References

(none)