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Red Hat Security Advisory 2018-0470-01

Red Hat Security Advisory 2018-0470-01
Posted Mar 12, 2018
Authored by Red Hat | Site access.redhat.com

Red Hat Security Advisory 2018-0470-01 - Red Hat Enterprise MRG is a next-generation IT infrastructure for enterprise computing. MRG offers increased performance, reliability, interoperability, and faster computing for enterprise customers. Security Fix: kernel: rds_message_alloc_sgs() function doesn't validate value used during DMA page allocation causes heap out-of-bounds write kernel: Null pointer dereference in rds_atomic_free_op() allows denial-of-service.

tags | advisory, kernel
systems | linux, redhat
advisories | CVE-2018-5332, CVE-2018-5333
MD5 | ff2bf3d7b038c564c350e113462343f3

Red Hat Security Advisory 2018-0470-01

Change Mirror Download
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=====================================================================
Red Hat Security Advisory

Synopsis: Moderate: Red Hat Enterprise MRG Realtime 2.5 security and enhancement update
Advisory ID: RHSA-2018:0470-01
Product: Red Hat Enterprise MRG for RHEL-6
Advisory URL: https://access.redhat.com/errata/RHSA-2018:0470
Issue date: 2018-03-12
CVE Names: CVE-2018-5332 CVE-2018-5333
=====================================================================

1. Summary:

Updated Red Hat Enterprise Messaging, Realtime, and Grid (MRG) Realtime
packages that fix multiple security issues and add one enhancement are now
available for Red Hat Enterprise MRG 2.5.

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 MRG Realtime for RHEL 6 Server v.2 - noarch, x86_64

3. Description:

Red Hat Enterprise MRG is a next-generation IT infrastructure for
enterprise computing. MRG offers increased performance, reliability,
interoperability, and faster computing for enterprise customers.

Security Fix(es):

* kernel: rds_message_alloc_sgs() function doesn't validate value used
during DMA page allocation causes heap out-of-bounds write (CVE-2018-5332,
Moderate)

* kernel: Null pointer dereference in rds_atomic_free_op() allows
denial-of-service (CVE-2018-5333, Moderate)

For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page(s) listed in the References section.

Enhancement(s):

* The kernel-rt packages have been upgraded to version 3.10.0-693.21.1,
which provides a number of security and bug fixes over the previous
version. (BZ#1537669)

All Red Hat Enterprise MRG Realtime users are advised to upgrade to these
updated packages, which contain backported patches to correct these issues
and add this enhancement.

4. Solution:

For details on how to apply this update, which includes the changes
described in this advisory, refer to:

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

After installing the update, the system must be restarted for the changes
to take effect.

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

1533890 - CVE-2018-5332 kernel: rds_message_alloc_sgs() function doesn't validate value used during DMA page allocation causes heap out-of-bounds write
1533891 - CVE-2018-5333 kernel: Null pointer dereference in rds_atomic_free_op() allowing denial-of-service
1537669 - update the MRG 2.5.z 3.10 kernel-rt sources

6. Package List:

Red Hat MRG Realtime for RHEL 6 Server v.2:

Source:
kernel-rt-3.10.0-693.21.1.rt56.607.el6rt.src.rpm

noarch:
kernel-rt-doc-3.10.0-693.21.1.rt56.607.el6rt.noarch.rpm
kernel-rt-firmware-3.10.0-693.21.1.rt56.607.el6rt.noarch.rpm

x86_64:
kernel-rt-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-debug-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-debug-devel-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-debuginfo-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-devel-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-trace-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-trace-devel-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-vanilla-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-vanilla-debuginfo-3.10.0-693.21.1.rt56.607.el6rt.x86_64.rpm
kernel-rt-vanilla-devel-3.10.0-693.21.1.rt56.607.el6rt.x86_64.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-2018-5332
https://access.redhat.com/security/cve/CVE-2018-5333
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2018 Red Hat, Inc.
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