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

Synopsis:          Moderate: kernel security and bug fix update
Advisory ID:       RHSA-2018:3823-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:3823
Issue date:        2018-12-12
CVE Names:         CVE-2017-15265 
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 5.9 Long
Life.

Red Hat Product Security has rated this update as having a security impact
of Moderate. 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 Enterprise Linux Long Life (v. 5.9 server) - i386, noarch, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

* kernel: Use-after-free in snd_seq_ioctl_create_port() (CVE-2017-15265)

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.

Bug Fix(es):

* Previously, on certain Intel 64 systems, the microcode contained a new
model-specific register (MSR) that was not present in the older microcode
running on CPUs that had not been updated yet. As a consequence, the system
crashed due to a general protection fault on a CPU running the older
microcode. This update fixes the bug by having the kernel use MSR access
routines that handle the general protection fault. As a result, the system
no longer crashes in the described scenario. (BZ#1652467)

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/):

1501878 - CVE-2017-15265 kernel: Use-after-free in snd_seq_ioctl_create_port()

6. Package List:

Red Hat Enterprise Linux Long Life (v. 5.9 server):

Source:
kernel-2.6.18-348.42.1.el5.src.rpm

i386:
kernel-2.6.18-348.42.1.el5.i686.rpm
kernel-PAE-2.6.18-348.42.1.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-348.42.1.el5.i686.rpm
kernel-PAE-devel-2.6.18-348.42.1.el5.i686.rpm
kernel-debug-2.6.18-348.42.1.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-348.42.1.el5.i686.rpm
kernel-debug-devel-2.6.18-348.42.1.el5.i686.rpm
kernel-debuginfo-2.6.18-348.42.1.el5.i686.rpm
kernel-debuginfo-common-2.6.18-348.42.1.el5.i686.rpm
kernel-devel-2.6.18-348.42.1.el5.i686.rpm
kernel-headers-2.6.18-348.42.1.el5.i386.rpm
kernel-xen-2.6.18-348.42.1.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-348.42.1.el5.i686.rpm
kernel-xen-devel-2.6.18-348.42.1.el5.i686.rpm

noarch:
kernel-doc-2.6.18-348.42.1.el5.noarch.rpm

x86_64:
kernel-2.6.18-348.42.1.el5.x86_64.rpm
kernel-debug-2.6.18-348.42.1.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-348.42.1.el5.x86_64.rpm
kernel-debug-devel-2.6.18-348.42.1.el5.x86_64.rpm
kernel-debuginfo-2.6.18-348.42.1.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-348.42.1.el5.x86_64.rpm
kernel-devel-2.6.18-348.42.1.el5.x86_64.rpm
kernel-headers-2.6.18-348.42.1.el5.x86_64.rpm
kernel-xen-2.6.18-348.42.1.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-348.42.1.el5.x86_64.rpm
kernel-xen-devel-2.6.18-348.42.1.el5.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-2017-15265
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 2018 Red Hat, Inc.
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RedHat: RHSA-2018-3823:01 Moderate: kernel security and bug fix update

An update for kernel is now available for Red Hat Enterprise Linux 5.9 Long Life

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: Use-after-free in snd_seq_ioctl_create_port() (CVE-2017-15265)
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.
Bug Fix(es):
* Previously, on certain Intel 64 systems, the microcode contained a new model-specific register (MSR) that was not present in the older microcode running on CPUs that had not been updated yet. As a consequence, the system crashed due to a general protection fault on a CPU running the older microcode. This update fixes the bug by having the kernel use MSR access routines that handle the general protection fault. As a result, the system no longer crashes in the described scenario. (BZ#1652467)



Summary


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.

References

https://access.redhat.com/security/cve/CVE-2017-15265 https://access.redhat.com/security/updates/classification/#moderate

Package List

Red Hat Enterprise Linux Long Life (v. 5.9 server):
Source: kernel-2.6.18-348.42.1.el5.src.rpm
i386: kernel-2.6.18-348.42.1.el5.i686.rpm kernel-PAE-2.6.18-348.42.1.el5.i686.rpm kernel-PAE-debuginfo-2.6.18-348.42.1.el5.i686.rpm kernel-PAE-devel-2.6.18-348.42.1.el5.i686.rpm kernel-debug-2.6.18-348.42.1.el5.i686.rpm kernel-debug-debuginfo-2.6.18-348.42.1.el5.i686.rpm kernel-debug-devel-2.6.18-348.42.1.el5.i686.rpm kernel-debuginfo-2.6.18-348.42.1.el5.i686.rpm kernel-debuginfo-common-2.6.18-348.42.1.el5.i686.rpm kernel-devel-2.6.18-348.42.1.el5.i686.rpm kernel-headers-2.6.18-348.42.1.el5.i386.rpm kernel-xen-2.6.18-348.42.1.el5.i686.rpm kernel-xen-debuginfo-2.6.18-348.42.1.el5.i686.rpm kernel-xen-devel-2.6.18-348.42.1.el5.i686.rpm
noarch: kernel-doc-2.6.18-348.42.1.el5.noarch.rpm
x86_64: kernel-2.6.18-348.42.1.el5.x86_64.rpm kernel-debug-2.6.18-348.42.1.el5.x86_64.rpm kernel-debug-debuginfo-2.6.18-348.42.1.el5.x86_64.rpm kernel-debug-devel-2.6.18-348.42.1.el5.x86_64.rpm kernel-debuginfo-2.6.18-348.42.1.el5.x86_64.rpm kernel-debuginfo-common-2.6.18-348.42.1.el5.x86_64.rpm kernel-devel-2.6.18-348.42.1.el5.x86_64.rpm kernel-headers-2.6.18-348.42.1.el5.x86_64.rpm kernel-xen-2.6.18-348.42.1.el5.x86_64.rpm kernel-xen-debuginfo-2.6.18-348.42.1.el5.x86_64.rpm kernel-xen-devel-2.6.18-348.42.1.el5.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/


Severity
Advisory ID: RHSA-2018:3823-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3823
Issued Date: : 2018-12-12
CVE Names: CVE-2017-15265

Topic

An update for kernel is now available for Red Hat Enterprise Linux 5.9 LongLife.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.


Topic


 

Relevant Releases Architectures

Red Hat Enterprise Linux Long Life (v. 5.9 server) - i386, noarch, x86_64


Bugs Fixed

1501878 - CVE-2017-15265 kernel: Use-after-free in snd_seq_ioctl_create_port()


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