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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Important: kernel-rt security update
Advisory ID:       RHSA-2018:1354-01
Product:           Red Hat Enterprise MRG for RHEL-6
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:1354
Issue date:        2018-05-08
CVE Names:         CVE-2018-8897 CVE-2018-1000199 
=====================================================================

1. Summary:

An update for kernel-rt is now available for Red Hat Enterprise MRG 2.

Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.

2. Relevant releases/architectures:

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

3. Description:

The kernel-rt packages provide the Real Time Linux Kernel, which enables
fine-tuning for systems with extremely high determinism requirements.

Security Fix(es):

* Kernel: error in exception handling leads to DoS (CVE-2018-8897)

* kernel: ptrace() incorrect error handling leads to corruption and DoS
(CVE-2018-1000199)

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

Red Hat would like to thank Nick Peterson (Everdox Tech LLC) and Andy
Lutomirski for reporting CVE-2018-8897 and Andy Lutomirski for reporting
CVE-2018-1000199.

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

The system must be rebooted for this update to take effect.

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

1567074 - CVE-2018-8897 Kernel: error in exception handling leads to DoS
1568477 - CVE-2018-1000199 kernel: ptrace() incorrect error handling leads to corruption and DoS

6. Package List:

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

Source:
kernel-rt-3.10.0-693.25.4.rt56.613.el6rt.src.rpm

noarch:
kernel-rt-doc-3.10.0-693.25.4.rt56.613.el6rt.noarch.rpm
kernel-rt-firmware-3.10.0-693.25.4.rt56.613.el6rt.noarch.rpm

x86_64:
kernel-rt-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-debug-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-debug-devel-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-debuginfo-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-devel-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-trace-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-trace-devel-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-vanilla-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-vanilla-debuginfo-3.10.0-693.25.4.rt56.613.el6rt.x86_64.rpm
kernel-rt-vanilla-devel-3.10.0-693.25.4.rt56.613.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-2018-8897
https://access.redhat.com/security/cve/CVE-2018-1000199
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/pop_ss

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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