Sigurnosni nedostatak jezgre operacijskog sustava

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Red Hat Security Advisory

Synopsis: Moderate: kernel security and bug fix update
Advisory ID: RHSA-2020:2933-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2933
Issue date: 2020-07-15
CVE Names: CVE-2019-18660
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 6.

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 Desktop (v. 6) – i386, noarch, x86_64
Red Hat Enterprise Linux Desktop Optional (v. 6) – i386, x86_64
Red Hat Enterprise Linux HPC Node (v. 6) – noarch, x86_64
Red Hat Enterprise Linux HPC Node Optional (v. 6) – x86_64
Red Hat Enterprise Linux Server (v. 6) – i386, noarch, ppc64, s390x, x86_64
Red Hat Enterprise Linux Server Optional (v. 6) – i386, ppc64, s390x, x86_64
Red Hat Enterprise Linux Workstation (v. 6) – i386, noarch, x86_64
Red Hat Enterprise Linux Workstation Optional (v. 6) – i386, x86_64

3. Description:

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

Security Fix(es):

* kernel: powerpc: incomplete Spectre-RSB mitigation leads to information
exposure (CVE-2019-18660)

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.

Bug Fix(es):

* Page soft offlining may result in soft lockup or crash during hugepage
migration (BZ#1839653)

* Backport NETDEV_CHANGE event fix for LACP (BZ#1841819)

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/):

1777825 – CVE-2019-18660 kernel: powerpc: incomplete Spectre-RSB mitigation leads to information exposure

6. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source:
kernel-2.6.32-754.31.1.el6.src.rpm

i386:
kernel-2.6.32-754.31.1.el6.i686.rpm
kernel-debug-2.6.32-754.31.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-754.31.1.el6.i686.rpm
kernel-debug-devel-2.6.32-754.31.1.el6.i686.rpm
kernel-debuginfo-2.6.32-754.31.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-754.31.1.el6.i686.rpm
kernel-devel-2.6.32-754.31.1.el6.i686.rpm
kernel-headers-2.6.32-754.31.1.el6.i686.rpm
perf-2.6.32-754.31.1.el6.i686.rpm
perf-debuginfo-2.6.32-754.31.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-754.31.1.el6.i686.rpm

noarch:
kernel-abi-whitelists-2.6.32-754.31.1.el6.noarch.rpm
kernel-doc-2.6.32-754.31.1.el6.noarch.rpm
kernel-firmware-2.6.32-754.31.1.el6.noarch.rpm

x86_64:
kernel-2.6.32-754.31.1.el6.x86_64.rpm
kernel-debug-2.6.32-754.31.1.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-754.31.1.el6.i686.rpm
kernel-debug-debuginfo-2.6.32-754.31.1.el6.x86_64.rpm
kernel-debug-devel-2.6.32-754.31.1.el6.i686.rpm
kernel-debug-devel-2.6.32-754.31.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-754.31.1.el6.i686.rpm
kernel-debuginfo-2.6.32-754.31.1.el6.x86_64.rpm
kernel-debuginfo-common-i686-2.6.32-754.31.1.el6.i686.rpm
kernel-debuginfo-common-x86_64-2.6.32-754.31.1.el6.x86_64.rpm
kernel-devel-2.6.32-754.31.1.el6.x86_64.rpm
kernel-headers-2.6.32-754.31.1.el6.x86_64.rpm
perf-2.6.32-754.31.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-754.31.1.el6.i686.rpm
perf-debuginfo-2.6.32-754.31.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-754.31.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-754.31.1.el6.x86_64.rpm

Red Hat Enterprise Linux Desktop Optional (v. 6):

i386:
kernel-debug-debuginfo-2.6.32-754.31.1.el6.i686.rpm
kernel-debuginfo-2.6.32-754.31.1.el6.i686.rpm
kernel-debuginfo-common-i686-2.6.32-754.31.1.el6.i686.rpm
perf-debuginfo-2.6.32-754.31.1.el6.i686.rpm
python-perf-2.6.32-754.31.1.el6.i686.rpm
python-perf-debuginfo-2.6.32-754.31.1.el6.i686.rpm

x86_64:
kernel-debug-debuginfo-2.6.32-754.31.1.el6.x86_64.rpm
kernel-debuginfo-2.6.32-754.31.1.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-754.31.1.el6.x86_64.rpm
perf-debuginfo-2.6.32-754.31.1.el6.x86_64.rpm
python-perf-2.6.32-754.31.1.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-754.31.1.el6.x86_64.rpm

Red Hat Enterprise Linux HPC Node (v. 6):

Source:
kernel-2.6.32-754.31.1.el6.src.rpm

noarch:
kernel-abi-whitelists-2.6.32-754.31.1.el6.noarch.rpm
kernel-doc-2.6.32-754.31.1.el6.noarch.rpm
kernel-firmware-2.6.32-754.31.1.el6.noarch.rpm

Red Hat Enterprise Linux HPC Node Optional (v. 6):

Red Hat Enterprise Linux Server (v. 6):

Source:
kernel-2.6.32-754.31.1.el6.src.rpm

noarch:
kernel-abi-whitelists-2.6.32-754.31.1.el6.noarch.rpm
kernel-doc-2.6.32-754.31.1.el6.noarch.rpm
kernel-firmware-2.6.32-754.31.1.el6.noarch.rpm

ppc64:
kernel-2.6.32-754.31.1.el6.ppc64.rpm
kernel-bootwrapper-2.6.32-754.31.1.el6.ppc64.rpm
kernel-debug-2.6.32-754.31.1.el6.ppc64.rpm
kernel-debug-debuginfo-2.6.32-754.31.1.el6.ppc64.rpm
kernel-debug-devel-2.6.32-754.31.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-754.31.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-754.31.1.el6.ppc64.rpm
kernel-devel-2.6.32-754.31.1.el6.ppc64.rpm
kernel-headers-2.6.32-754.31.1.el6.ppc64.rpm
perf-2.6.32-754.31.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-754.31.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-754.31.1.el6.ppc64.rpm

s390x:
kernel-2.6.32-754.31.1.el6.s390x.rpm
kernel-debug-2.6.32-754.31.1.el6.s390x.rpm
kernel-debug-debuginfo-2.6.32-754.31.1.el6.s390x.rpm
kernel-debug-devel-2.6.32-754.31.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-754.31.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-754.31.1.el6.s390x.rpm
kernel-devel-2.6.32-754.31.1.el6.s390x.rpm
kernel-headers-2.6.32-754.31.1.el6.s390x.rpm
kernel-kdump-2.6.32-754.31.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-754.31.1.el6.s390x.rpm
kernel-kdump-devel-2.6.32-754.31.1.el6.s390x.rpm
perf-2.6.32-754.31.1.el6.s390x.rpm
perf-debuginfo-2.6.32-754.31.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-754.31.1.el6.s390x.rpm

Red Hat Enterprise Linux Server Optional (v. 6):

ppc64:
kernel-debug-debuginfo-2.6.32-754.31.1.el6.ppc64.rpm
kernel-debuginfo-2.6.32-754.31.1.el6.ppc64.rpm
kernel-debuginfo-common-ppc64-2.6.32-754.31.1.el6.ppc64.rpm
perf-debuginfo-2.6.32-754.31.1.el6.ppc64.rpm
python-perf-2.6.32-754.31.1.el6.ppc64.rpm
python-perf-debuginfo-2.6.32-754.31.1.el6.ppc64.rpm

s390x:
kernel-debug-debuginfo-2.6.32-754.31.1.el6.s390x.rpm
kernel-debuginfo-2.6.32-754.31.1.el6.s390x.rpm
kernel-debuginfo-common-s390x-2.6.32-754.31.1.el6.s390x.rpm
kernel-kdump-debuginfo-2.6.32-754.31.1.el6.s390x.rpm
perf-debuginfo-2.6.32-754.31.1.el6.s390x.rpm
python-perf-2.6.32-754.31.1.el6.s390x.rpm
python-perf-debuginfo-2.6.32-754.31.1.el6.s390x.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source:
kernel-2.6.32-754.31.1.el6.src.rpm

noarch:
kernel-abi-whitelists-2.6.32-754.31.1.el6.noarch.rpm
kernel-doc-2.6.32-754.31.1.el6.noarch.rpm
kernel-firmware-2.6.32-754.31.1.el6.noarch.rpm

Red Hat Enterprise Linux Workstation Optional (v. 6):

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-2019-18660
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/

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