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Hash: SHA256

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

Synopsis:          Important: kernel security, bug fix, and enhancement update
Advisory ID:       RHSA-2018:1738-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2018:1738
Issue date:        2018-05-29
CVE Names:         CVE-2018-3639 
====================================================================
1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.4
Extended Update Support.

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 Enterprise Linux ComputeNode EUS (v. 7.4) - noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4) - x86_64
Red Hat Enterprise Linux Server EUS (v. 7.4) - noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional EUS (v. 7.4) - noarch, ppc64, ppc64le, x86_64

3. Description:

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

Security Fix(es):

* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of Load & Store instructions
(a commonly used performance optimization). It relies on the presence of a
precisely-defined instruction sequence in the privileged code as well as
the fact that memory read from address to which a recent memory write has
occurred may see an older value and subsequently cause an update into the
microprocessor's data cache even for speculatively executed instructions
that never actually commit (retire). As a result, an unprivileged attacker
could use this flaw to read privileged memory by conducting targeted cache
side-channel attacks. (CVE-2018-3639)

Note: This issue is present in hardware and cannot be fully fixed via
software update. The updated kernel packages provide software side of the
mitigation for this hardware issue. To be fully functional, up-to-date CPU
microcode applied on the system might be required. Please refer to
References section for further information about this issue, CPU microcode
requirements and the potential performance impact.

In this update, mitigation for PowerPC architecture is provided.

Red Hat would like to thank Ken Johnson (Microsoft Security Response
Center) and Jann Horn (Google Project Zero) for reporting this issue.

Bug Fix(es):

These updated kernel packages include also numerous bug fixes. Space
precludes documenting all of these bug fixes in this advisory. See the bug
fix descriptions in the related Knowledge Article:
https://access.redhat.com/articles/3449601

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/):

1566890 - CVE-2018-3639 hw: cpu: speculative store bypass

6. Package List:

Red Hat Enterprise Linux ComputeNode EUS (v. 7.4):

Source:
kernel-3.10.0-693.33.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.33.1.el7.noarch.rpm
kernel-doc-3.10.0-693.33.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.33.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.33.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.33.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.33.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.33.1.el7.x86_64.rpm
perf-3.10.0-693.33.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
python-perf-3.10.0-693.33.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4):

x86_64:
kernel-debug-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.33.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.33.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server EUS (v. 7.4):

Source:
kernel-3.10.0-693.33.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.33.1.el7.noarch.rpm
kernel-doc-3.10.0-693.33.1.el7.noarch.rpm

ppc64:
kernel-3.10.0-693.33.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-693.33.1.el7.ppc64.rpm
kernel-debug-3.10.0-693.33.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-693.33.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-693.33.1.el7.ppc64.rpm
kernel-devel-3.10.0-693.33.1.el7.ppc64.rpm
kernel-headers-3.10.0-693.33.1.el7.ppc64.rpm
kernel-tools-3.10.0-693.33.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-693.33.1.el7.ppc64.rpm
perf-3.10.0-693.33.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm
python-perf-3.10.0-693.33.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm

ppc64le:
kernel-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-debug-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-devel-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-headers-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-tools-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-693.33.1.el7.ppc64le.rpm
perf-3.10.0-693.33.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm
python-perf-3.10.0-693.33.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm

s390x:
kernel-3.10.0-693.33.1.el7.s390x.rpm
kernel-debug-3.10.0-693.33.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-693.33.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-693.33.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-693.33.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-693.33.1.el7.s390x.rpm
kernel-devel-3.10.0-693.33.1.el7.s390x.rpm
kernel-headers-3.10.0-693.33.1.el7.s390x.rpm
kernel-kdump-3.10.0-693.33.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-693.33.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-693.33.1.el7.s390x.rpm
perf-3.10.0-693.33.1.el7.s390x.rpm
perf-debuginfo-3.10.0-693.33.1.el7.s390x.rpm
python-perf-3.10.0-693.33.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-693.33.1.el7.s390x.rpm

x86_64:
kernel-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.33.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.33.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.33.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.33.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.33.1.el7.x86_64.rpm
perf-3.10.0-693.33.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
python-perf-3.10.0-693.33.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm

Red Hat Enterprise Linux Server Optional EUS (v. 7.4):

noarch:
kernel-doc-3.10.0-693.33.1.el7.noarch.rpm

ppc64:
kernel-debug-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-693.33.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-693.33.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm

ppc64le:
kernel-debug-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-693.33.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm

x86_64:
kernel-debug-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.33.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.33.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.33.1.el7.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-2018-3639
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/ssbd
https://access.redhat.com/articles/3449601

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-2018-1738:01 Important: kernel security, bug fix,

An update for kernel is now available for Red Hat Enterprise Linux 7.4 Extended Update Support

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* An industry-wide issue was found in the way many modern microprocessor designs have implemented speculative execution of Load & Store instructions (a commonly used performance optimization). It relies on the presence of a precisely-defined instruction sequence in the privileged code as well as the fact that memory read from address to which a recent memory write has occurred may see an older value and subsequently cause an update into the microprocessor's data cache even for speculatively executed instructions that never actually commit (retire). As a result, an unprivileged attacker could use this flaw to read privileged memory by conducting targeted cache side-channel attacks. (CVE-2018-3639)
Note: This issue is present in hardware and cannot be fully fixed via software update. The updated kernel packages provide software side of the mitigation for this hardware issue. To be fully functional, up-to-date CPU microcode applied on the system might be required. Please refer to References section for further information about this issue, CPU microcode requirements and the potential performance impact.
In this update, mitigation for PowerPC architecture is provided.
Red Hat would like to thank Ken Johnson (Microsoft Security Response Center) and Jann Horn (Google Project Zero) for reporting this issue.
Bug Fix(es):
These updated kernel packages include also numerous bug fixes. Space precludes documenting all of these bug fixes in this advisory. See the bug fix descriptions in the related Knowledge Article: https://access.redhat.com/articles/3449601

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-2018-3639 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/security/vulnerabilities/ssbd https://access.redhat.com/articles/3449601

Package List

Red Hat Enterprise Linux ComputeNode EUS (v. 7.4):
Source: kernel-3.10.0-693.33.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-693.33.1.el7.noarch.rpm kernel-doc-3.10.0-693.33.1.el7.noarch.rpm
x86_64: kernel-3.10.0-693.33.1.el7.x86_64.rpm kernel-debug-3.10.0-693.33.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.33.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.33.1.el7.x86_64.rpm kernel-devel-3.10.0-693.33.1.el7.x86_64.rpm kernel-headers-3.10.0-693.33.1.el7.x86_64.rpm kernel-tools-3.10.0-693.33.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.33.1.el7.x86_64.rpm perf-3.10.0-693.33.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm python-perf-3.10.0-693.33.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.4):
x86_64: kernel-debug-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.33.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.33.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.4):
Source: kernel-3.10.0-693.33.1.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-693.33.1.el7.noarch.rpm kernel-doc-3.10.0-693.33.1.el7.noarch.rpm
ppc64: kernel-3.10.0-693.33.1.el7.ppc64.rpm kernel-bootwrapper-3.10.0-693.33.1.el7.ppc64.rpm kernel-debug-3.10.0-693.33.1.el7.ppc64.rpm kernel-debug-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm kernel-debug-devel-3.10.0-693.33.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-693.33.1.el7.ppc64.rpm kernel-devel-3.10.0-693.33.1.el7.ppc64.rpm kernel-headers-3.10.0-693.33.1.el7.ppc64.rpm kernel-tools-3.10.0-693.33.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm kernel-tools-libs-3.10.0-693.33.1.el7.ppc64.rpm perf-3.10.0-693.33.1.el7.ppc64.rpm perf-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm python-perf-3.10.0-693.33.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm
ppc64le: kernel-3.10.0-693.33.1.el7.ppc64le.rpm kernel-bootwrapper-3.10.0-693.33.1.el7.ppc64le.rpm kernel-debug-3.10.0-693.33.1.el7.ppc64le.rpm kernel-debug-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.33.1.el7.ppc64le.rpm kernel-devel-3.10.0-693.33.1.el7.ppc64le.rpm kernel-headers-3.10.0-693.33.1.el7.ppc64le.rpm kernel-tools-3.10.0-693.33.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm kernel-tools-libs-3.10.0-693.33.1.el7.ppc64le.rpm perf-3.10.0-693.33.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm python-perf-3.10.0-693.33.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm
s390x: kernel-3.10.0-693.33.1.el7.s390x.rpm kernel-debug-3.10.0-693.33.1.el7.s390x.rpm kernel-debug-debuginfo-3.10.0-693.33.1.el7.s390x.rpm kernel-debug-devel-3.10.0-693.33.1.el7.s390x.rpm kernel-debuginfo-3.10.0-693.33.1.el7.s390x.rpm kernel-debuginfo-common-s390x-3.10.0-693.33.1.el7.s390x.rpm kernel-devel-3.10.0-693.33.1.el7.s390x.rpm kernel-headers-3.10.0-693.33.1.el7.s390x.rpm kernel-kdump-3.10.0-693.33.1.el7.s390x.rpm kernel-kdump-debuginfo-3.10.0-693.33.1.el7.s390x.rpm kernel-kdump-devel-3.10.0-693.33.1.el7.s390x.rpm perf-3.10.0-693.33.1.el7.s390x.rpm perf-debuginfo-3.10.0-693.33.1.el7.s390x.rpm python-perf-3.10.0-693.33.1.el7.s390x.rpm python-perf-debuginfo-3.10.0-693.33.1.el7.s390x.rpm
x86_64: kernel-3.10.0-693.33.1.el7.x86_64.rpm kernel-debug-3.10.0-693.33.1.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-debug-devel-3.10.0-693.33.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.33.1.el7.x86_64.rpm kernel-devel-3.10.0-693.33.1.el7.x86_64.rpm kernel-headers-3.10.0-693.33.1.el7.x86_64.rpm kernel-tools-3.10.0-693.33.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-tools-libs-3.10.0-693.33.1.el7.x86_64.rpm perf-3.10.0-693.33.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm python-perf-3.10.0-693.33.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional EUS (v. 7.4):
noarch: kernel-doc-3.10.0-693.33.1.el7.noarch.rpm
ppc64: kernel-debug-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm kernel-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm kernel-debuginfo-common-ppc64-3.10.0-693.33.1.el7.ppc64.rpm kernel-tools-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm kernel-tools-libs-devel-3.10.0-693.33.1.el7.ppc64.rpm perf-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm python-perf-debuginfo-3.10.0-693.33.1.el7.ppc64.rpm
ppc64le: kernel-debug-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm kernel-debug-devel-3.10.0-693.33.1.el7.ppc64le.rpm kernel-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm kernel-debuginfo-common-ppc64le-3.10.0-693.33.1.el7.ppc64le.rpm kernel-tools-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm kernel-tools-libs-devel-3.10.0-693.33.1.el7.ppc64le.rpm perf-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm python-perf-debuginfo-3.10.0-693.33.1.el7.ppc64le.rpm
x86_64: kernel-debug-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-693.33.1.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-693.33.1.el7.x86_64.rpm perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm python-perf-debuginfo-3.10.0-693.33.1.el7.x86_64.rpm
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Severity

Advisory ID: RHSA-2018:1738-01

Product: Red Hat Enterprise Linux

Advisory URL: https://access.redhat.com/errata/RHSA-2018:1738

Issued Date: : 2018-05-29

CVE Names: CVE-2018-3639

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.4Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.