Protect yourself against future threats.
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===========================================================================
AUSCERT External Security Bulletin Redistribution
ESB-2019.3620.2
Important: kernel security and bug fix update
26 September 2019
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: kernel
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
Red Hat Enterprise Linux Server 6
Red Hat Enterprise Linux WS/Desktop 6
Impact/Access: Increased Privileges -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2019-14835 CVE-2019-1125
Reference: ESB-2019.3613
ESB-2019.3612
ESB-2019.3572.3
ESB-2019.3536
Original Bulletin:
https://access.redhat.com/errata/RHSA-2019:2899
https://access.redhat.com/errata/RHSA-2019:2900
https://access.redhat.com/errata/RHSA-2019:2901
Comment: This bulletin contains three (3) Red Hat security advisories.
Revision History: September 26 2019: Vendor released further announcements with updated affected releases/architectures
September 26 2019: Initial Release
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Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2019:2899-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2899
Issue date: 2019-09-25
CVE Names: CVE-2019-1125 CVE-2019-14835
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.2
Advanced Update Support, Red Hat Enterprise Linux 7.2 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.2 Update Services for SAP
Solutions.
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 Server AUS (v. 7.2) - noarch, x86_64
Red Hat Enterprise Linux Server E4S (v. 7.2) - noarch, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.2) - x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.2) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.2) - noarch, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* A buffer overflow flaw was found in the way Linux kernel's vhost
functionality that translates virtqueue buffers to IOVs, logged the buffer
descriptors during migration. A privileged guest user able to pass
descriptors with invalid length to the host when migration is underway,
could use this flaw to increase their privileges on the host.
(CVE-2019-14835)
* kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)
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):
* fs deadlock when a memory allocation waits on page writeback in NOFS
context (BZ#1729103)
* fragmented packets timing out (BZ#1729409)
* kernel build: speed up debuginfo extraction (BZ#1731460)
* use "make -jN" for modules_install (BZ#1735079)
* shmem: consider shm_mnt as a long-term mount (BZ#1737374)
* raid1d can hang in freeze_array if handling a mix of read and write
errors (BZ#1737792)
* Backport TCP follow-up for small buffers (BZ#1739125)
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/):
1724389 - CVE-2019-1125 kernel: hw: Spectre SWAPGS gadget vulnerability
1750727 - CVE-2019-14835 kernel: vhost-net: guest to host kernel escape during migration
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 7.2):
Source:
kernel-3.10.0-327.82.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-327.82.1.el7.noarch.rpm
kernel-doc-3.10.0-327.82.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debug-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm
kernel-devel-3.10.0-327.82.1.el7.x86_64.rpm
kernel-headers-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.82.1.el7.x86_64.rpm
perf-3.10.0-327.82.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
python-perf-3.10.0-327.82.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.2):
Source:
kernel-3.10.0-327.82.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-327.82.1.el7.noarch.rpm
kernel-doc-3.10.0-327.82.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debug-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm
kernel-devel-3.10.0-327.82.1.el7.x86_64.rpm
kernel-headers-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.82.1.el7.x86_64.rpm
perf-3.10.0-327.82.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
python-perf-3.10.0-327.82.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 7.2):
Source:
kernel-3.10.0-327.82.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-327.82.1.el7.noarch.rpm
kernel-doc-3.10.0-327.82.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debug-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm
kernel-devel-3.10.0-327.82.1.el7.x86_64.rpm
kernel-headers-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-327.82.1.el7.x86_64.rpm
perf-3.10.0-327.82.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
python-perf-3.10.0-327.82.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.2):
x86_64:
kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.82.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional E4S (v. 7.2):
x86_64:
kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.82.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional TUS (v. 7.2):
x86_64:
kernel-debug-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-327.82.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-327.82.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-327.82.1.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-2019-1125
https://access.redhat.com/security/cve/CVE-2019-14835
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/articles/4329821
https://access.redhat.com/security/vulnerabilities/kernel-vhost
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
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- --
RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce
=============================================================================
- ----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security and bug fix update
Advisory ID: RHSA-2019:2900-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2900
Issue date: 2019-09-25
CVE Names: CVE-2019-1125 CVE-2019-14835
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 7.3
Advanced Update Support, Red Hat Enterprise Linux 7.3 Telco Extended Update
Support, and Red Hat Enterprise Linux 7.3 Update Services for SAP
Solutions.
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 Server AUS (v. 7.3) - noarch, x86_64
Red Hat Enterprise Linux Server E4S (v. 7.3) - noarch, ppc64le, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 7.3) - x86_64
Red Hat Enterprise Linux Server Optional E4S (v. 7.3) - ppc64le, x86_64
Red Hat Enterprise Linux Server Optional TUS (v. 7.3) - x86_64
Red Hat Enterprise Linux Server TUS (v. 7.3) - noarch, x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* A buffer overflow flaw was found in the way Linux kernel's vhost
functionality that translates virtqueue buffers to IOVs, logged the buffer
descriptors during migration. A privileged guest user able to pass
descriptors with invalid length to the host when migration is underway,
could use this flaw to increase their privileges on the host.
(CVE-2019-14835)
* kernel: hw: Spectre SWAPGS gadget vulnerability (CVE-2019-1125)
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):
* fs deadlock when a memory allocation waits on page writeback in NOFS
context (BZ#1729105)
* fragmented packets timing out (BZ#1729410)
* kernel build: speed up debuginfo extraction (BZ#1731461)
* use "make -jN" for modules_install (BZ#1735080)
* shmem: consider shm_mnt as a long-term mount (BZ#1737375)
* Backport TCP follow-up for small buffers (BZ#1739126)
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/):
1724389 - CVE-2019-1125 kernel: hw: Spectre SWAPGS gadget vulnerability
1750727 - CVE-2019-14835 kernel: vhost-net: guest to host kernel escape during migration
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 7.3):
Source:
kernel-3.10.0-514.69.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-514.69.1.el7.noarch.rpm
kernel-doc-3.10.0-514.69.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debug-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.69.1.el7.x86_64.rpm
kernel-devel-3.10.0-514.69.1.el7.x86_64.rpm
kernel-headers-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-514.69.1.el7.x86_64.rpm
perf-3.10.0-514.69.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
python-perf-3.10.0-514.69.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server E4S (v. 7.3):
Source:
kernel-3.10.0-514.69.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-514.69.1.el7.noarch.rpm
kernel-doc-3.10.0-514.69.1.el7.noarch.rpm
ppc64le:
kernel-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-bootwrapper-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-debug-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-debug-debuginfo-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-devel-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-headers-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-tools-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-tools-libs-3.10.0-514.69.1.el7.ppc64le.rpm
perf-3.10.0-514.69.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-514.69.1.el7.ppc64le.rpm
python-perf-3.10.0-514.69.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-514.69.1.el7.ppc64le.rpm
x86_64:
kernel-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debug-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.69.1.el7.x86_64.rpm
kernel-devel-3.10.0-514.69.1.el7.x86_64.rpm
kernel-headers-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-514.69.1.el7.x86_64.rpm
perf-3.10.0-514.69.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
python-perf-3.10.0-514.69.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server TUS (v. 7.3):
Source:
kernel-3.10.0-514.69.1.el7.src.rpm
noarch:
kernel-abi-whitelists-3.10.0-514.69.1.el7.noarch.rpm
kernel-doc-3.10.0-514.69.1.el7.noarch.rpm
x86_64:
kernel-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debug-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debug-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debug-devel-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.69.1.el7.x86_64.rpm
kernel-devel-3.10.0-514.69.1.el7.x86_64.rpm
kernel-headers-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-libs-3.10.0-514.69.1.el7.x86_64.rpm
perf-3.10.0-514.69.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
python-perf-3.10.0-514.69.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 7.3):
x86_64:
kernel-debug-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-514.69.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional E4S (v. 7.3):
ppc64le:
kernel-debug-debuginfo-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-debug-devel-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-debuginfo-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-debuginfo-common-ppc64le-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-tools-debuginfo-3.10.0-514.69.1.el7.ppc64le.rpm
kernel-tools-libs-devel-3.10.0-514.69.1.el7.ppc64le.rpm
perf-debuginfo-3.10.0-514.69.1.el7.ppc64le.rpm
python-perf-debuginfo-3.10.0-514.69.1.el7.ppc64le.rpm
x86_64:
kernel-debug-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-514.69.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional TUS (v. 7.3):
x86_64:
kernel-debug-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-debuginfo-common-x86_64-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
kernel-tools-libs-devel-3.10.0-514.69.1.el7.x86_64.rpm
perf-debuginfo-3.10.0-514.69.1.el7.x86_64.rpm
python-perf-debuginfo-3.10.0-514.69.1.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-2019-1125
https://access.redhat.com/security/cve/CVE-2019-14835
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/articles/4329821
https://access.redhat.com/security/vulnerabilities/kernel-vhost
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
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- --
RHSA-announce mailing list
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https://www.redhat.com/mailman/listinfo/rhsa-announce
=============================================================================
- ----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel security update
Advisory ID: RHSA-2019:2901-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2019:2901
Issue date: 2019-09-25
CVE Names: CVE-2019-14835
=====================================================================
1. Summary:
An update for kernel is now available for Red Hat Enterprise Linux 6.5
Advanced 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 Server AUS (v. 6.5) - noarch, x86_64
Red Hat Enterprise Linux Server Optional AUS (v. 6.5) - x86_64
3. Description:
The kernel packages contain the Linux kernel, the core of any Linux
operating system.
Security Fix(es):
* A buffer overflow flaw was found in the way Linux kernel's vhost
functionality that translates virtqueue buffers to IOVs, logged the buffer
descriptors during migration. A privileged guest user able to pass
descriptors with invalid length to the host when migration is underway,
could use this flaw to increase their privileges on the host.
(CVE-2019-14835)
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/):
1750727 - CVE-2019-14835 kernel: vhost-net: guest to host kernel escape during migration
6. Package List:
Red Hat Enterprise Linux Server AUS (v. 6.5):
Source:
kernel-2.6.32-431.96.2.el6.src.rpm
noarch:
kernel-abi-whitelists-2.6.32-431.96.2.el6.noarch.rpm
kernel-doc-2.6.32-431.96.2.el6.noarch.rpm
kernel-firmware-2.6.32-431.96.2.el6.noarch.rpm
x86_64:
kernel-2.6.32-431.96.2.el6.x86_64.rpm
kernel-debug-2.6.32-431.96.2.el6.x86_64.rpm
kernel-debug-debuginfo-2.6.32-431.96.2.el6.x86_64.rpm
kernel-debug-devel-2.6.32-431.96.2.el6.x86_64.rpm
kernel-debuginfo-2.6.32-431.96.2.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-431.96.2.el6.x86_64.rpm
kernel-devel-2.6.32-431.96.2.el6.x86_64.rpm
kernel-headers-2.6.32-431.96.2.el6.x86_64.rpm
perf-2.6.32-431.96.2.el6.x86_64.rpm
perf-debuginfo-2.6.32-431.96.2.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-431.96.2.el6.x86_64.rpm
Red Hat Enterprise Linux Server Optional AUS (v. 6.5):
Source:
kernel-2.6.32-431.96.2.el6.src.rpm
x86_64:
kernel-debug-debuginfo-2.6.32-431.96.2.el6.x86_64.rpm
kernel-debuginfo-2.6.32-431.96.2.el6.x86_64.rpm
kernel-debuginfo-common-x86_64-2.6.32-431.96.2.el6.x86_64.rpm
perf-debuginfo-2.6.32-431.96.2.el6.x86_64.rpm
python-perf-2.6.32-431.96.2.el6.x86_64.rpm
python-perf-debuginfo-2.6.32-431.96.2.el6.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-2019-14835
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/kernel-vhost
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2019 Red Hat, Inc.
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