Sigurnosni nedostaci jezre operacijskog sustava

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

Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2018:0395-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:0395
Issue date: 2018-03-06
CVE Names: CVE-2017-7518 CVE-2017-12188
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 7.

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 Client (v. 7) – noarch, x86_64
Red Hat Enterprise Linux Client Optional (v. 7) – x86_64
Red Hat Enterprise Linux ComputeNode (v. 7) – noarch, x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) – x86_64
Red Hat Enterprise Linux Server (v. 7) – noarch, ppc64, ppc64le, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 7) – ppc64, ppc64le, x86_64
Red Hat Enterprise Linux Workstation (v. 7) – noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 7) – x86_64

3. Description:

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

These updated kernel packages include several security issues and numerous
bug fixes, some of which you can see below. Space precludes documenting
all of these bug fixes in this advisory. To see the complete list of bug
fixes, users are directed to the related Knowledge Article:
https://access.redhat.com/articles/3368501.

Security Fix(es):

* Kernel: KVM: MMU potential stack buffer overrun during page walks
(CVE-2017-12188, Important)

* Kernel: KVM: debug exception via syscall emulation (CVE-2017-7518,
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.

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/):

1464473 – CVE-2017-7518 Kernel: KVM: debug exception via syscall emulation
1500380 – CVE-2017-12188 Kernel: KVM: MMU potential stack buffer overrun during page walks

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
kernel-3.10.0-693.21.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.21.1.el7.noarch.rpm
kernel-doc-3.10.0-693.21.1.el7.noarch.rpm

x86_64:
kernel-3.10.0-693.21.1.el7.x86_64.rpm
kernel-debug-3.10.0-693.21.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-693.21.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.21.1.el7.x86_64.rpm
kernel-devel-3.10.0-693.21.1.el7.x86_64.rpm
kernel-headers-3.10.0-693.21.1.el7.x86_64.rpm
kernel-tools-3.10.0-693.21.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-693.21.1.el7.x86_64.rpm
perf-3.10.0-693.21.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm
python-perf-3.10.0-693.21.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm

Red Hat Enterprise Linux Client Optional (v. 7):

x86_64:
kernel-debug-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-693.21.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-693.21.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-693.21.1.el7.x86_64.rpm

Red Hat Enterprise Linux ComputeNode (v. 7):

Source:
kernel-3.10.0-693.21.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.21.1.el7.noarch.rpm
kernel-doc-3.10.0-693.21.1.el7.noarch.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

Red Hat Enterprise Linux Server (v. 7):

Source:
kernel-3.10.0-693.21.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.21.1.el7.noarch.rpm
kernel-doc-3.10.0-693.21.1.el7.noarch.rpm

ppc64:
kernel-3.10.0-693.21.1.el7.ppc64.rpm
kernel-bootwrapper-3.10.0-693.21.1.el7.ppc64.rpm
kernel-debug-3.10.0-693.21.1.el7.ppc64.rpm
kernel-debug-debuginfo-3.10.0-693.21.1.el7.ppc64.rpm
kernel-debug-devel-3.10.0-693.21.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-693.21.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-693.21.1.el7.ppc64.rpm
kernel-devel-3.10.0-693.21.1.el7.ppc64.rpm
kernel-headers-3.10.0-693.21.1.el7.ppc64.rpm
kernel-tools-3.10.0-693.21.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-693.21.1.el7.ppc64.rpm
kernel-tools-libs-3.10.0-693.21.1.el7.ppc64.rpm
perf-3.10.0-693.21.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-693.21.1.el7.ppc64.rpm
python-perf-3.10.0-693.21.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-693.21.1.el7.ppc64.rpm

ppc64le:
kernel-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-debug-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-devel-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-headers-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-tools-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-693.21.1.el7.ppc64le.rpm
perf-3.10.0-693.21.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.21.1.el7.ppc64le.rpm
python-perf-3.10.0-693.21.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.21.1.el7.ppc64le.rpm

s390x:
kernel-3.10.0-693.21.1.el7.s390x.rpm
kernel-debug-3.10.0-693.21.1.el7.s390x.rpm
kernel-debug-debuginfo-3.10.0-693.21.1.el7.s390x.rpm
kernel-debug-devel-3.10.0-693.21.1.el7.s390x.rpm
kernel-debuginfo-3.10.0-693.21.1.el7.s390x.rpm
kernel-debuginfo-common-s390x-3.10.0-693.21.1.el7.s390x.rpm
kernel-devel-3.10.0-693.21.1.el7.s390x.rpm
kernel-headers-3.10.0-693.21.1.el7.s390x.rpm
kernel-kdump-3.10.0-693.21.1.el7.s390x.rpm
kernel-kdump-debuginfo-3.10.0-693.21.1.el7.s390x.rpm
kernel-kdump-devel-3.10.0-693.21.1.el7.s390x.rpm
perf-3.10.0-693.21.1.el7.s390x.rpm
perf-debuginfo-3.10.0-693.21.1.el7.s390x.rpm
python-perf-3.10.0-693.21.1.el7.s390x.rpm
python-perf-debuginfo-3.10.0-693.21.1.el7.s390x.rpm

Red Hat Enterprise Linux Server Optional (v. 7):

ppc64:
kernel-debug-debuginfo-3.10.0-693.21.1.el7.ppc64.rpm
kernel-debuginfo-3.10.0-693.21.1.el7.ppc64.rpm
kernel-debuginfo-common-ppc64-3.10.0-693.21.1.el7.ppc64.rpm
kernel-tools-debuginfo-3.10.0-693.21.1.el7.ppc64.rpm
kernel-tools-libs-devel-3.10.0-693.21.1.el7.ppc64.rpm
perf-debuginfo-3.10.0-693.21.1.el7.ppc64.rpm
python-perf-debuginfo-3.10.0-693.21.1.el7.ppc64.rpm

ppc64le:
kernel-debug-debuginfo-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-693.21.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-693.21.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-693.21.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-693.21.1.el7.ppc64le.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
kernel-3.10.0-693.21.1.el7.src.rpm

noarch:
kernel-abi-whitelists-3.10.0-693.21.1.el7.noarch.rpm
kernel-doc-3.10.0-693.21.1.el7.noarch.rpm

Red Hat Enterprise Linux Workstation Optional (v. 7):

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-2017-7518
https://access.redhat.com/security/cve/CVE-2017-12188
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/articles/3368501

8. Contact:

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

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

Synopsis: Important: kernel-rt security and bug fix update
Advisory ID: RHSA-2018:0412-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:0412
Issue date: 2018-03-06
CVE Names: CVE-2017-7518 CVE-2017-12188
=====================================================================

1. Summary:

An update for kernel-rt is now available for Red Hat Enterprise Linux 7.

2. Relevant releases/architectures:

Red Hat Enterprise Linux Realtime (v. 7) – noarch, x86_64
Red Hat Enterprise Linux for Real Time for NFV (v. 7) – 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: KVM: MMU potential stack buffer overrun during page walks
(CVE-2017-12188, Important)

* Kernel: KVM: debug exception via syscall emulation (CVE-2017-7518,
Moderate)

Bug Fix(es):

* The kernel-rt packages have been upgraded to the 3.10.0-693.21.1 source
tree, which provides a number of bug fixes over the previous version.
(BZ#1537671)

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/):

1464473 – CVE-2017-7518 Kernel: KVM: debug exception via syscall emulation
1500380 – CVE-2017-12188 Kernel: KVM: MMU potential stack buffer overrun during page walks
1537671 – kernel-rt: update to the RHEL7.4.z batch#5 source tree

6. Package List:

Red Hat Enterprise Linux for Real Time for NFV (v. 7):

Source:
kernel-rt-3.10.0-693.21.1.rt56.639.el7.src.rpm

noarch:
kernel-rt-doc-3.10.0-693.21.1.rt56.639.el7.noarch.rpm

x86_64:
kernel-rt-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debug-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debug-kvm-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debug-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-devel-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-kvm-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-trace-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-trace-kvm-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm
kernel-rt-trace-kvm-debuginfo-3.10.0-693.21.1.rt56.639.el7.x86_64.rpm

Red Hat Enterprise Linux Realtime (v. 7):

Source:
kernel-rt-3.10.0-693.21.1.rt56.639.el7.src.rpm

noarch:
kernel-rt-doc-3.10.0-693.21.1.rt56.639.el7.noarch.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-2017-7518
https://access.redhat.com/security/cve/CVE-2017-12188
https://access.redhat.com/security/updates/classification/#important

8. Contact:

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

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