[RHSA-2015:0383-01] Moderate: ppc64-diag security, bug fix, and enhancement update

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Red Hat Security Advisory

 

Synopsis: Moderate: ppc64-diag security, bug fix, and enhancement update

Advisory ID: RHSA-2015:0383-01

Product: Red Hat Enterprise Linux

Advisory URL: https://rhn.redhat.com/errata/RHSA-2015-0383.html

Issue date: 2015-03-05

CVE Names: CVE-2014-4038 CVE-2014-4039

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1. Summary:

 

Updated ppc64-diag packages that fix two security issues, several bugs, and

add various enhancements are now available for Red Hat Enterprise Linux 7.

 

Red Hat Product Security has rated this update as having Moderate security

impact. Common Vulnerability Scoring System (CVSS) base scores, which give

detailed severity ratings, are available for each vulnerability from the

CVE links in the References section.

 

2. Relevant releases/architectures:

 

Red Hat Enterprise Linux Server (v. 7) - ppc64

 

3. Description:

 

The ppc64-diag packages provide diagnostic tools for Linux on the 64-bit

PowerPC platforms. The platform diagnostics write events reported by the

firmware to the service log, provide automated responses to urgent events,

and notify system administrators or connected service frameworks about the

reported events.

 

Multiple insecure temporary file use flaws were found in the way the

ppc64-diag utility created certain temporary files. A local attacker could

possibly use either of these flaws to perform a symbolic link attack and

overwrite arbitrary files with the privileges of the user running

ppc64-diag, or obtain sensitive information from the temporary files.

(CVE-2014-4038, CVE-2014-4039)

 

The ppc64-diag packages have been upgraded to upstream version 2.6.7, which

provides a number of bug fixes and enhancements over the previous version

including support for hot plugging of QEMU PCI devices. (BZ#1088493,

BZ#1084062)

 

This update also fixes the following bugs:

 

* Prior to this update, the rtas_errd daemon was not started by default on

system boot. With this update, rtas_errd has been modified to start

automatically by default. (BZ#1170146)

 

* Previously, the /var/log/dump file was not automatically created when

installing the ppc64-diag package. This bug has been fixed, and

/var/log/dump is now created at package install time as expected.

(BZ#1175808)

 

In addition, this update adds the following enhancement:

 

* This update adds support for building the ppc64-diag packages on the

little-endian variant of IBM Power Systems platform architecture.

(BZ#1124007)

 

Users of ppc64-diag are advised to upgrade to these updated packages, which

correct these issues and add these enhancements.

 

4. Solution:

 

Before applying this update, make sure all previously released errata

relevant to your system have been applied.

 

For details on how to apply this update, refer to:

 

https://access.redhat.com/articles/11258

 

5. Bugs fixed (https://bugzilla.redhat.com/):

 

1109371 - CVE-2014-4038 CVE-2014-4039 ppc64-diag: multiple temporary file races

 

6. Package List:

 

Red Hat Enterprise Linux Server (v. 7):

 

Source:

ppc64-diag-2.6.7-6.el7.src.rpm

 

ppc64:

ppc64-diag-2.6.7-6.el7.ppc64.rpm

ppc64-diag-debuginfo-2.6.7-6.el7.ppc64.rpm

 

These packages are GPG signed by Red Hat for security. Our key and

details on how to verify the signature are available from

https://access.redhat.com/security/team/key/

 

7. References:

 

https://access.redhat.com/security/cve/CVE-2014-4038

https://access.redhat.com/security/cve/CVE-2014-4039

https://access.redhat.com/security/updates/classification/#moderate

 

8. Contact:

 

The Red Hat security contact is . More contact

details at https://access.redhat.com/security/team/contact/

 

Copyright 2015 Red Hat, Inc.

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