VAR-201905-0709

Vulnerability from variot - Updated: 2026-04-10 23:12

Microarchitectural Store Buffer Data Sampling (MSBDS): Store buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf. Intel Xeon Scalable Processors and so on are products of Intel Corporation of the United States. Intel XeonScalable Processors is a scalable server central processing unit (CPU). IntelXeonProcessorE7v4Family is a XeonE7 series server central processing unit (CPU). IntelXeonProcessorE5v4Family is a XeonE5 series server central processing unit (CPU). An information disclosure vulnerability exists in several Intel products. The vulnerability stems from errors in the configuration of the network system or product during operation. An unauthorized attacker can exploit the vulnerability to obtain sensitive information about the affected component. The following products and versions are affected: Intel Xeon Scalable Processors; Xeon Processor E7 v4 Family; Xeon Processor E5 v4 Family; Xeon Processor E3 v6 Family; Xeon Processor E3 v4 Family; Xeon Processor E; Xeon E Processor; Xeon D Processor; Puma; Pentium Processor Silver Series; Pentium Processor N Series; Pentium Processor J Series; Pentium Gold Processor Series; Mobile Communications Platforms; Microcode; Core X series Processors; Celeron Processor N Series; Celeron Processor J Series; Celeron Processor G Series; Atom Processor X Series ;Atom Processor E3900 Series;Atom Processor E3800 Series;Atom Processor. ========================================================================== Ubuntu Security Notice USN-3980-1 May 14, 2019

linux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-raspi2 vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 18.10

Summary:

Several security issues were fixed in the Linux kernel.

Software Description: - linux: Linux kernel - linux-aws: Linux kernel for Amazon Web Services (AWS) systems - linux-azure: Linux kernel for Microsoft Azure Cloud systems - linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems - linux-kvm: Linux kernel for cloud environments - linux-raspi2: Linux kernel for Raspberry Pi 2

Details:

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan Horea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, Cristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss discovered that memory previously stored in microarchitectural fill buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12130)

Brandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that memory previously stored in microarchitectural load ports of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12127)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel Moghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel Gruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory previously stored in microarchitectural store buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2018-12126)

Vasily Averin and Evgenii Shatokhin discovered that a use-after-free vulnerability existed in the NFS41+ subsystem when multiple network namespaces are in use. A local attacker in a container could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2018-16884)

Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur, Moritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa Milburn, Sebastian \xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and Cristiano Giuffrida discovered that uncacheable memory previously stored in microarchitectural buffers of an Intel CPU core may be exposed to a malicious process that is executing on the same CPU core. (CVE-2019-11091)

Matteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups subsystem of the Linux kernel did not properly account for SCTP socket buffers. A local attacker could use this to cause a denial of service (system crash). (CVE-2019-3874)

Alex Williamson discovered that the vfio subsystem of the Linux kernel did not properly limit DMA mappings. A local attacker could use this to cause a denial of service (memory exhaustion). (CVE-2019-3882)

Marc Orr discovered that the KVM hypervisor implementation in the Linux kernel did not properly restrict APIC MSR register values when nested virtualization is used. An attacker in a guest vm could use this to cause a denial of service (host OS crash). (CVE-2019-3887)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel contained a head puffer overflow. A physically proximate attacker could use this to cause a denial of service (system crash) or possibly execute arbitrary code. (CVE-2019-9500)

Hugues Anguelkov discovered that the Broadcom Wifi driver in the Linux kernel did not properly prevent remote firmware events from being processed for USB Wifi devices. A physically proximate attacker could use this to send firmware events to the device. (CVE-2019-9503)

Update instructions:

The problem can be corrected by updating your system to the following package versions:

Ubuntu 18.10: linux-image-4.18.0-1011-gcp 4.18.0-1011.12 linux-image-4.18.0-1012-kvm 4.18.0-1012.12 linux-image-4.18.0-1014-raspi2 4.18.0-1014.16 linux-image-4.18.0-1016-aws 4.18.0-1016.18 linux-image-4.18.0-1018-azure 4.18.0-1018.18 linux-image-4.18.0-20-generic 4.18.0-20.21 linux-image-4.18.0-20-generic-lpae 4.18.0-20.21 linux-image-4.18.0-20-lowlatency 4.18.0-20.21 linux-image-4.18.0-20-snapdragon 4.18.0-20.21 linux-image-aws 4.18.0.1016.16 linux-image-azure 4.18.0.1018.19 linux-image-gcp 4.18.0.1011.11 linux-image-generic 4.18.0.20.21 linux-image-generic-lpae 4.18.0.20.21 linux-image-gke 4.18.0.1011.11 linux-image-kvm 4.18.0.1012.12 linux-image-lowlatency 4.18.0.20.21 linux-image-powerpc-e500mc 4.18.0.20.21 linux-image-powerpc-smp 4.18.0.20.21 linux-image-powerpc64-emb 4.18.0.20.21 linux-image-powerpc64-smp 4.18.0.20.21 linux-image-raspi2 4.18.0.1014.11 linux-image-snapdragon 4.18.0.20.21 linux-image-virtual 4.18.0.20.21

After a standard system update you need to reboot your computer to make all the necessary changes.

Please note that fully mitigating the Microarchitectural Data Sampling (MDS) issues (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, and CVE-2019-11091) requires corresponding processor microcode/firmware updates or, in virtual environments, hypervisor updates. -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512

============================================================================ FreeBSD-SA-19:26.mcu Security Advisory The FreeBSD Project

Topic: Intel CPU Microcode Update

Category: 3rd party Module: Intel CPU microcode Announced: 2019-11-12 Credits: Intel Affects: All supported versions of FreeBSD running on certain Intel CPUs. CVE Name: CVE-2019-11135, CVE-2019-11139, CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, CVE-2018-11091, CVE-2017-5715

For general information regarding FreeBSD Security Advisories, including descriptions of the fields above, security branches, and the following sections, please visit . Background

  • From time to time Intel releases new CPU microcode to address functional issues and security vulnerabilities. Such a release is also known as a Micro Code Update (MCU), and is a component of a broader Intel Platform Update (IPU). FreeBSD distributes CPU microcode via the devcpu-data port and package.

II. Problem Description

Starting with version 1.26, the devcpu-data port/package includes updates and mitigations for the following technical and security advisories (depending on CPU model).

Intel TSX Updates (TAA) CVE-2019-11135 Voltage Modulation Vulnerability CVE-2019-11139 MD_CLEAR Operations CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2018-11091 TA Indirect Sharing CVE-2017-5715 EGETKEY CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2018-11091 JCC SKX102 Erratum

Updated microcode includes mitigations for CPU issues, but may also cause a performance regression due to the JCC erratum mitigation. Please visit http://www.intel.com/benchmarks for further information.

Please visit http://www.intel.com/security for detailed information on these advisories as well as a list of CPUs that are affected.

III. Impact

Operating a CPU without the latest microcode may result in erratic or unpredictable behavior, including system crashes and lock ups. Certain issues listed in this advisory may result in the leakage of privileged system information to unprivileged users.

IV. Workaround

To determine if TSX is present in your system, run the following:

  1. kldload cpuctl

  2. cpucontrol -i 7 /dev/cpuctl0

If bits 4 (0x10) and 11 (0x800) are set in the second response word (EBX), TSX is present.

In the absence of updated microcode, TAA can be mitigated by enabling the MDS mitigation:

  1. sysctl hw.mds_disable=1

Systems must be running FreeBSD 11.3, FreeBSD 12.1, or later for this to work.

IMPORTANT If your use case can tolerate leaving the CPU issues unmitigated and cannot tolerate a performance regression, ensure that the devcpu-data package is not installed or is locked at 1.25 or earlier.

pkg delete devcpu-data

or

pkg lock devcpu-data

Later versions of the LLVM and GCC compilers will include changes that partially relieve the peformance impact.

V. Solution

Install the latest Intel Microcode Update via the devcpu-data port/package, version 1.26 or later.

Updated microcode adds the ability to disable TSX. With updated microcode the issue can still be mitigated by enabling the MDS mitigation as described in the workaround section, or by disabling TSX instead:

  1. kldload cpuctl

  2. cpucontrol -i 7 /dev/cpuctl0

If bit 29 (0x20000000) is set in the fourth response word (EDX), then the 0x10a MSR is present. cpucontrol -m 0x10a /dev/cpuctl0

If bit 8 (0x100) of the response word is set, your CPU is not vulnerable to TAA and no further action is required.

If bit 7 (0x80) is cleared, then your CPU does not have updated microcode that facilitates TSX to be disabled. The only remedy available is to enable the MDS mitigation, as documented above. cpucontrol -m 0x122=3 /dev/cpuctl0

Repeat step 4 for each numbered CPU that is present.

A future kernel change to FreeBSD will provide automatic detection and mitigation for TAA.

LLVM 9.0 will be updated in FreeBSD 13-current to address the JCC peformance impact. Updates to prior versions of LLVM are currently being evaluated.

VI. Correction details

There are currently no changes in FreeBSD to address this issue.

VII.

Software Description: - intel-microcode: Processor microcode for Intel CPUs

Details:

USN-3977-1 provided mitigations for Microarchitectural Data Sampling (MDS) vulnerabilities in Intel Microcode for a large number of Intel processor families. This update provides the corresponding updated microcode mitigations for Intel Cherry Trail and Bay Trail processor families. Relevant releases/architectures:

RHV-M 4.2 - noarch

  1. It includes the configuration of the Red Hat Support plugin, copying downstream-only artifacts to the ISO domain, and links to the knowledgebase and other support material. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202003-56

                                       https://security.gentoo.org/

Severity: High Title: Xen: Multiple vulnerabilities Date: March 25, 2020 Bugs: #686024, #699048, #699996, #702644 ID: 202003-56


Synopsis

Multiple vulnerabilities have been found in Xen, the worst of which could allow for privilege escalation.

Background

Xen is a bare-metal hypervisor.

Affected packages

-------------------------------------------------------------------
 Package              /     Vulnerable     /            Unaffected
-------------------------------------------------------------------

1 app-emulation/xen < 4.12.0-r1 >= 4.12.0-r1 2 app-emulation/xen-tools < 4.12.0-r1 >= 4.12.0-r1 ------------------------------------------------------------------- 2 affected packages

Description

Multiple vulnerabilities have been discovered in Xen. Please review the referenced CVE identifiers for details.

Workaround

There is no known workaround at this time.

Resolution

All Xen users should upgrade to the latest version:

# emerge --sync # emerge --ask --oneshot --verbose ">=app-emulation/xen-4.12.0-r1"

References

[ 1 ] CVE-2018-12126 https://nvd.nist.gov/vuln/detail/CVE-2018-12126 [ 2 ] CVE-2018-12127 https://nvd.nist.gov/vuln/detail/CVE-2018-12127 [ 3 ] CVE-2018-12130 https://nvd.nist.gov/vuln/detail/CVE-2018-12130 [ 4 ] CVE-2018-12207 https://nvd.nist.gov/vuln/detail/CVE-2018-12207 [ 5 ] CVE-2018-12207 https://nvd.nist.gov/vuln/detail/CVE-2018-12207 [ 6 ] CVE-2019-11091 https://nvd.nist.gov/vuln/detail/CVE-2019-11091 [ 7 ] CVE-2019-11135 https://nvd.nist.gov/vuln/detail/CVE-2019-11135 [ 8 ] CVE-2019-18420 https://nvd.nist.gov/vuln/detail/CVE-2019-18420 [ 9 ] CVE-2019-18421 https://nvd.nist.gov/vuln/detail/CVE-2019-18421 [ 10 ] CVE-2019-18423 https://nvd.nist.gov/vuln/detail/CVE-2019-18423 [ 11 ] CVE-2019-18424 https://nvd.nist.gov/vuln/detail/CVE-2019-18424 [ 12 ] CVE-2019-18425 https://nvd.nist.gov/vuln/detail/CVE-2019-18425 [ 13 ] CVE-2019-19577 https://nvd.nist.gov/vuln/detail/CVE-2019-19577 [ 14 ] CVE-2019-19578 https://nvd.nist.gov/vuln/detail/CVE-2019-19578 [ 15 ] CVE-2019-19580 https://nvd.nist.gov/vuln/detail/CVE-2019-19580 [ 16 ] CVE-2019-19581 https://nvd.nist.gov/vuln/detail/CVE-2019-19581 [ 17 ] CVE-2019-19582 https://nvd.nist.gov/vuln/detail/CVE-2019-19582 [ 18 ] CVE-2019-19583 https://nvd.nist.gov/vuln/detail/CVE-2019-19583

Availability

This GLSA and any updates to it are available for viewing at the Gentoo Security Website:

https://security.gentoo.org/glsa/202003-56

Concerns?

Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org.

License

Copyright 2020 Gentoo Foundation, Inc; referenced text belongs to its owner(s).

The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license.

https://creativecommons.org/licenses/by-sa/2.5 . -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256

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

Synopsis: Important: libvirt security update Advisory ID: RHSA-2019:1180-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2019:1180 Issue date: 2019-05-14 CVE Names: CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 CVE-2019-11091 =====================================================================

  1. Summary:

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

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.

  1. Relevant releases/architectures:

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

  1. Description:

The libvirt library contains a C API for managing and interacting with the virtualization capabilities of Linux and other operating systems. In addition, libvirt provides tools for remote management of virtualized systems.

Security Fix(es):

  • A flaw was found in the implementation of the "fill buffer", a mechanism used by modern CPUs when a cache-miss is made on L1 CPU cache. If an attacker can generate a load operation that would create a page fault, the execution will continue speculatively with incorrect data from the fill buffer while the data is fetched from higher level caches. This response time can be measured to infer data in the fill buffer. (CVE-2018-12130)

  • Modern Intel microprocessors implement hardware-level micro-optimizations to improve the performance of writing data back to CPU caches. The write operation is split into STA (STore Address) and STD (STore Data) sub-operations. These sub-operations allow the processor to hand-off address generation logic into these sub-operations for optimized writes. Both of these sub-operations write to a shared distributed processor structure called the 'processor store buffer'. As a result, an unprivileged attacker could use this flaw to read private data resident within the CPU's processor store buffer. (CVE-2018-12126)

  • Microprocessors use a ‘load port’ subcomponent to perform load operations from memory or IO. During a load operation, the load port receives data from the memory or IO subsystem and then provides the data to the CPU registers and operations in the CPU’s pipelines. Stale load operations results are stored in the 'load port' table until overwritten by newer operations. Certain load-port operations triggered by an attacker can be used to reveal data about previous stale requests leaking data back to the attacker via a timing side-channel. (CVE-2019-11091)

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.

  1. 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

After installing the updated packages, libvirtd will be restarted automatically.

  1. Bugs fixed (https://bugzilla.redhat.com/):

1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS) 1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS) 1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS) 1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)

  1. Package List:

Red Hat Enterprise Linux Desktop (v. 6):

Source: libvirt-0.10.2-64.el6_10.1.src.rpm

i386: libvirt-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-python-0.10.2-64.el6_10.1.i686.rpm

x86_64: libvirt-0.10.2-64.el6_10.1.x86_64.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.x86_64.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-python-0.10.2-64.el6_10.1.x86_64.rpm

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

i386: libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm

x86_64: libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm libvirt-lock-sanlock-0.10.2-64.el6_10.1.x86_64.rpm

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

Source: libvirt-0.10.2-64.el6_10.1.src.rpm

x86_64: libvirt-0.10.2-64.el6_10.1.x86_64.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.x86_64.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-python-0.10.2-64.el6_10.1.x86_64.rpm

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

x86_64: libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm libvirt-lock-sanlock-0.10.2-64.el6_10.1.x86_64.rpm

Red Hat Enterprise Linux Server (v. 6):

Source: libvirt-0.10.2-64.el6_10.1.src.rpm

i386: libvirt-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-python-0.10.2-64.el6_10.1.i686.rpm

ppc64: libvirt-0.10.2-64.el6_10.1.ppc64.rpm libvirt-client-0.10.2-64.el6_10.1.ppc.rpm libvirt-client-0.10.2-64.el6_10.1.ppc64.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.ppc.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.ppc64.rpm libvirt-devel-0.10.2-64.el6_10.1.ppc.rpm libvirt-devel-0.10.2-64.el6_10.1.ppc64.rpm libvirt-python-0.10.2-64.el6_10.1.ppc64.rpm

s390x: libvirt-0.10.2-64.el6_10.1.s390x.rpm libvirt-client-0.10.2-64.el6_10.1.s390.rpm libvirt-client-0.10.2-64.el6_10.1.s390x.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.s390.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.s390x.rpm libvirt-devel-0.10.2-64.el6_10.1.s390.rpm libvirt-devel-0.10.2-64.el6_10.1.s390x.rpm libvirt-python-0.10.2-64.el6_10.1.s390x.rpm

x86_64: libvirt-0.10.2-64.el6_10.1.x86_64.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.x86_64.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm libvirt-python-0.10.2-64.el6_10.1.x86_64.rpm

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

x86_64: libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-lock-sanlock-0.10.2-64.el6_10.1.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 6):

Source: libvirt-0.10.2-64.el6_10.1.src.rpm

i386: libvirt-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-python-0.10.2-64.el6_10.1.i686.rpm

x86_64: libvirt-0.10.2-64.el6_10.1.x86_64.rpm libvirt-client-0.10.2-64.el6_10.1.i686.rpm libvirt-client-0.10.2-64.el6_10.1.x86_64.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-devel-0.10.2-64.el6_10.1.i686.rpm libvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm libvirt-python-0.10.2-64.el6_10.1.x86_64.rpm

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

x86_64: libvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm libvirt-lock-sanlock-0.10.2-64.el6_10.1.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/

  1. References:

https://access.redhat.com/security/cve/CVE-2018-12126 https://access.redhat.com/security/cve/CVE-2018-12127 https://access.redhat.com/security/cve/CVE-2018-12130 https://access.redhat.com/security/cve/CVE-2019-11091 https://access.redhat.com/security/vulnerabilities/mds https://access.redhat.com/security/updates/classification/#important

  1. 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. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1

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-- RHSA-announce mailing list RHSA-announce@redhat.com https://www.redhat.com/mailman/listinfo/rhsa-announce . These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks. These packages include redhat-release-virtualization-host, ovirt-node, and rhev-hypervisor. RHVH features a Cockpit user interface for monitoring the host's resources and performing administrative tasks

Show details on source website

{
  "affected_products": {
    "_id": null,
    "data": [
      {
        "_id": null,
        "model": "fedora",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "fedoraproject",
        "version": "29"
      },
      {
        "_id": null,
        "model": "microarchitectural store buffer data sampling",
        "scope": "eq",
        "trust": 1.0,
        "vendor": "intel",
        "version": null
      },
      {
        "_id": null,
        "model": "xeon scalable processors",
        "scope": null,
        "trust": 0.6,
        "vendor": "intel",
        "version": null
      },
      {
        "_id": null,
        "model": "6th generation core processors",
        "scope": "eq",
        "trust": 0.6,
        "vendor": "intel",
        "version": "0"
      },
      {
        "_id": null,
        "model": "5th generation core processors",
        "scope": "eq",
        "trust": 0.6,
        "vendor": "intel",
        "version": "0"
      },
      {
        "_id": null,
        "model": "8th generation core processors",
        "scope": "eq",
        "trust": 0.6,
        "vendor": "intel",
        "version": "0"
      },
      {
        "_id": null,
        "model": "7th generation core processors",
        "scope": "eq",
        "trust": 0.6,
        "vendor": "intel",
        "version": "0"
      },
      {
        "_id": null,
        "model": "xeon processor e3 family",
        "scope": "eq",
        "trust": 0.6,
        "vendor": "intel",
        "version": "v60"
      },
      {
        "_id": null,
        "model": "xeon processor e5 family",
        "scope": "eq",
        "trust": 0.6,
        "vendor": "intel",
        "version": "v40"
      },
      {
        "_id": null,
        "model": "xeon processor e7 family",
        "scope": "eq",
        "trust": 0.6,
        "vendor": "intel",
        "version": "v40"
      },
      {
        "_id": null,
        "model": "xeon processor e3 family",
        "scope": "eq",
        "trust": 0.6,
        "vendor": "intel",
        "version": "v4"
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2019-22231"
      },
      {
        "db": "NVD",
        "id": "CVE-2018-12126"
      }
    ]
  },
  "credits": {
    "_id": null,
    "data": "Ubuntu",
    "sources": [
      {
        "db": "PACKETSTORM",
        "id": "152922"
      },
      {
        "db": "PACKETSTORM",
        "id": "152923"
      },
      {
        "db": "PACKETSTORM",
        "id": "152938"
      },
      {
        "db": "PACKETSTORM",
        "id": "153049"
      }
    ],
    "trust": 0.4
  },
  "cve": "CVE-2018-12126",
  "cvss": {
    "_id": null,
    "data": [
      {
        "cvssV2": [
          {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "author": "nvd@nist.gov",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "confidentialityImpact": "COMPLETE",
            "exploitabilityScore": 3.4,
            "id": "CVE-2018-12126",
            "impactScore": 6.9,
            "integrityImpact": "NONE",
            "severity": "MEDIUM",
            "trust": 1.0,
            "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N",
            "version": "2.0"
          },
          {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "author": "CNVD",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "confidentialityImpact": "COMPLETE",
            "exploitabilityScore": 3.4,
            "id": "CNVD-2019-22231",
            "impactScore": 6.9,
            "integrityImpact": "NONE",
            "severity": "MEDIUM",
            "trust": 0.6,
            "vectorString": "AV:L/AC:M/Au:N/C:C/I:N/A:N",
            "version": "2.0"
          },
          {
            "accessComplexity": "MEDIUM",
            "accessVector": "LOCAL",
            "authentication": "NONE",
            "author": "VULHUB",
            "availabilityImpact": "NONE",
            "baseScore": 4.7,
            "confidentialityImpact": "COMPLETE",
            "exploitabilityScore": 3.4,
            "id": "VHN-122054",
            "impactScore": 6.9,
            "integrityImpact": "NONE",
            "severity": "MEDIUM",
            "trust": 0.1,
            "vectorString": "AV:L/AC:M/AU:N/C:C/I:N/A:N",
            "version": "2.0"
          }
        ],
        "cvssV3": [
          {
            "attackComplexity": "HIGH",
            "attackVector": "LOCAL",
            "author": "nvd@nist.gov",
            "availabilityImpact": "NONE",
            "baseScore": 5.6,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "exploitabilityScore": 1.1,
            "id": "CVE-2018-12126",
            "impactScore": 4.0,
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "trust": 1.0,
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.0"
          }
        ],
        "severity": [
          {
            "author": "nvd@nist.gov",
            "id": "CVE-2018-12126",
            "trust": 1.0,
            "value": "MEDIUM"
          },
          {
            "author": "CNVD",
            "id": "CNVD-2019-22231",
            "trust": 0.6,
            "value": "MEDIUM"
          },
          {
            "author": "VULHUB",
            "id": "VHN-122054",
            "trust": 0.1,
            "value": "MEDIUM"
          }
        ]
      }
    ],
    "sources": [
      {
        "db": "CNVD",
        "id": "CNVD-2019-22231"
      },
      {
        "db": "VULHUB",
        "id": "VHN-122054"
      },
      {
        "db": "NVD",
        "id": "CVE-2018-12126"
      }
    ]
  },
  "description": {
    "_id": null,
    "data": "Microarchitectural Store Buffer Data Sampling (MSBDS): Store buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access. A list of impacted products can be found here: https://www.intel.com/content/dam/www/public/us/en/documents/corporate-information/SA00233-microcode-update-guidance_05132019.pdf. Intel Xeon Scalable Processors and so on are products of Intel Corporation of the United States. Intel XeonScalable Processors is a scalable server central processing unit (CPU). IntelXeonProcessorE7v4Family is a XeonE7 series server central processing unit (CPU). IntelXeonProcessorE5v4Family is a XeonE5 series server central processing unit (CPU). An information disclosure vulnerability exists in several Intel products. The vulnerability stems from errors in the configuration of the network system or product during operation. An unauthorized attacker can exploit the vulnerability to obtain sensitive information about the affected component. The following products and versions are affected: Intel Xeon Scalable Processors; Xeon Processor E7 v4 Family; Xeon Processor E5 v4 Family; Xeon Processor E3 v6 Family; Xeon Processor E3 v4 Family; Xeon Processor E; Xeon E Processor; Xeon D Processor; Puma; Pentium Processor Silver Series; Pentium Processor N Series; Pentium Processor J Series; Pentium Gold Processor Series; Mobile Communications Platforms; Microcode; Core X series Processors; Celeron Processor N Series; Celeron Processor J Series; Celeron Processor G Series; Atom Processor X Series ;Atom Processor E3900 Series;Atom Processor E3800 Series;Atom Processor. ==========================================================================\nUbuntu Security Notice USN-3980-1\nMay 14, 2019\n\nlinux, linux-aws, linux-azure, linux-gcp, linux-kvm, linux-raspi2 vulnerabilities\n==========================================================================\n\nA security issue affects these releases of Ubuntu and its derivatives:\n\n- Ubuntu 18.10\n\nSummary:\n\nSeveral security issues were fixed in the Linux kernel. \n\nSoftware Description:\n- linux: Linux kernel\n- linux-aws: Linux kernel for Amazon Web Services (AWS) systems\n- linux-azure: Linux kernel for Microsoft Azure Cloud systems\n- linux-gcp: Linux kernel for Google Cloud Platform (GCP) systems\n- linux-kvm: Linux kernel for cloud environments\n- linux-raspi2: Linux kernel for Raspberry Pi 2\n\nDetails:\n\nKe Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Giorgi Maisuradze, Dan\nHorea Lutas, Andrei Lutas, Volodymyr Pikhur, Stephan van Schaik, Alyssa\nMilburn, Sebastian \\xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos,\nCristiano Giuffrida, Moritz Lipp, Michael Schwarz, and Daniel Gruss\ndiscovered that memory previously stored in microarchitectural fill buffers\nof an Intel CPU core may be exposed to a malicious process that is\nexecuting on the same CPU core. (CVE-2018-12130)\n\nBrandon Falk, Ke Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Stephan\nvan Schaik, Alyssa Milburn, Sebastian \\xd6sterlund, Pietro Frigo, Kaveh\nRazavi, Herbert Bos, and Cristiano Giuffrida discovered that memory\npreviously stored in microarchitectural load ports of an Intel CPU core may\nbe exposed to a malicious process that is executing on the same CPU core. \n(CVE-2018-12127)\n\nKe Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Marina Minkin, Daniel\nMoghimi, Moritz Lipp, Michael Schwarz, Jo Van Bulck, Daniel Genkin, Daniel\nGruss, Berk Sunar, Frank Piessens, and Yuval Yarom discovered that memory\npreviously stored in microarchitectural store buffers of an Intel CPU core\nmay be exposed to a malicious process that is executing on the same CPU\ncore. \n(CVE-2018-12126)\n\nVasily Averin and Evgenii Shatokhin discovered that a use-after-free\nvulnerability existed in the NFS41+ subsystem when multiple network\nnamespaces are in use. A local attacker in a container could use this to\ncause a denial of service (system crash) or possibly execute arbitrary\ncode. (CVE-2018-16884)\n\nKe Sun, Henrique Kawakami, Kekai Hu, Rodrigo Branco, Volodrmyr Pikhur,\nMoritz Lipp, Michael Schwarz, Daniel Gruss, Stephan van Schaik, Alyssa\nMilburn, Sebastian \\xd6sterlund, Pietro Frigo, Kaveh Razavi, Herbert Bos, and\nCristiano Giuffrida discovered that uncacheable memory previously stored in\nmicroarchitectural buffers of an Intel CPU core may be exposed to a\nmalicious process that is executing on the same CPU core. (CVE-2019-11091)\n\nMatteo Croce, Natale Vinto, and Andrea Spagnolo discovered that the cgroups\nsubsystem of the Linux kernel did not properly account for SCTP socket\nbuffers. A local attacker could use this to cause a denial of service\n(system crash). (CVE-2019-3874)\n\nAlex Williamson discovered that the vfio subsystem of the Linux kernel did\nnot properly limit DMA mappings. A local attacker could use this to cause a\ndenial of service (memory exhaustion). (CVE-2019-3882)\n\nMarc Orr discovered that the KVM hypervisor implementation in the Linux\nkernel did not properly restrict APIC MSR register values when nested\nvirtualization is used. An attacker in a guest vm could use this to cause a\ndenial of service (host OS crash). (CVE-2019-3887)\n\nHugues Anguelkov discovered that the Broadcom Wifi driver in the Linux\nkernel contained a head puffer overflow. A physically proximate attacker\ncould use this to cause a denial of service (system crash) or possibly\nexecute arbitrary code. (CVE-2019-9500)\n\nHugues Anguelkov discovered that the Broadcom Wifi driver in the Linux\nkernel did not properly prevent remote firmware events from being processed\nfor USB Wifi devices. A physically proximate attacker could use this to\nsend firmware events to the device. (CVE-2019-9503)\n\nUpdate instructions:\n\nThe problem can be corrected by updating your system to the following\npackage versions:\n\nUbuntu 18.10:\n  linux-image-4.18.0-1011-gcp     4.18.0-1011.12\n  linux-image-4.18.0-1012-kvm     4.18.0-1012.12\n  linux-image-4.18.0-1014-raspi2  4.18.0-1014.16\n  linux-image-4.18.0-1016-aws     4.18.0-1016.18\n  linux-image-4.18.0-1018-azure   4.18.0-1018.18\n  linux-image-4.18.0-20-generic   4.18.0-20.21\n  linux-image-4.18.0-20-generic-lpae  4.18.0-20.21\n  linux-image-4.18.0-20-lowlatency  4.18.0-20.21\n  linux-image-4.18.0-20-snapdragon  4.18.0-20.21\n  linux-image-aws                 4.18.0.1016.16\n  linux-image-azure               4.18.0.1018.19\n  linux-image-gcp                 4.18.0.1011.11\n  linux-image-generic             4.18.0.20.21\n  linux-image-generic-lpae        4.18.0.20.21\n  linux-image-gke                 4.18.0.1011.11\n  linux-image-kvm                 4.18.0.1012.12\n  linux-image-lowlatency          4.18.0.20.21\n  linux-image-powerpc-e500mc      4.18.0.20.21\n  linux-image-powerpc-smp         4.18.0.20.21\n  linux-image-powerpc64-emb       4.18.0.20.21\n  linux-image-powerpc64-smp       4.18.0.20.21\n  linux-image-raspi2              4.18.0.1014.11\n  linux-image-snapdragon          4.18.0.20.21\n  linux-image-virtual             4.18.0.20.21\n\nAfter a standard system update you need to reboot your computer to make\nall the necessary changes. \n\nPlease note that fully mitigating the Microarchitectural Data Sampling\n(MDS) issues (CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, and\nCVE-2019-11091) requires corresponding processor microcode/firmware\nupdates or, in virtual environments, hypervisor updates. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA512\n\n============================================================================\nFreeBSD-SA-19:26.mcu                                        Security Advisory\n                                                          The FreeBSD Project\n\nTopic:          Intel CPU Microcode Update\n\nCategory:       3rd party\nModule:         Intel CPU microcode\nAnnounced:      2019-11-12\nCredits:        Intel\nAffects:        All supported versions of FreeBSD running on certain\n\t\tIntel CPUs. \nCVE Name:       CVE-2019-11135, CVE-2019-11139, CVE-2018-12126,\n                CVE-2018-12127, CVE-2018-12130, CVE-2018-11091,\n                CVE-2017-5715\n\n\nFor general information regarding FreeBSD Security Advisories,\nincluding descriptions of the fields above, security branches, and the\nfollowing sections, please visit \u003cURL:https://security.FreeBSD.org/\u003e.   Background\n\n- From time to time Intel releases new CPU microcode to address functional\nissues and security vulnerabilities.  Such a release is also known as a\nMicro Code Update (MCU), and is a component of a broader Intel Platform\nUpdate (IPU).  FreeBSD distributes CPU microcode via the devcpu-data port\nand package. \n\nII.  Problem Description\n\nStarting with version 1.26, the devcpu-data port/package includes updates and\nmitigations for the following technical and security advisories (depending\non CPU model). \n\nIntel TSX Updates (TAA)                 CVE-2019-11135\nVoltage Modulation Vulnerability        CVE-2019-11139\nMD_CLEAR Operations                     CVE-2018-12126\n                                        CVE-2018-12127\n                                        CVE-2018-12130\n                                        CVE-2018-11091\nTA Indirect Sharing                     CVE-2017-5715\nEGETKEY                                 CVE-2018-12126\n                                        CVE-2018-12127\n                                        CVE-2018-12130\n                                        CVE-2018-11091\nJCC                                     SKX102 Erratum\n\nUpdated microcode includes mitigations for CPU issues, but may also cause a\nperformance regression due to the JCC erratum mitigation.  Please visit\nhttp://www.intel.com/benchmarks for further information. \n\nPlease visit http://www.intel.com/security for detailed information on\nthese advisories as well as a list of CPUs that are affected. \n\nIII. Impact\n\nOperating a CPU without the latest microcode may result in erratic or\nunpredictable behavior, including system crashes and lock ups.  Certain\nissues listed in this advisory may result in the leakage of privileged\nsystem information to unprivileged users. \n\nIV.  Workaround\n\nTo determine if TSX is present in your system, run the following:\n\n1. kldload cpuctl\n\n2. cpucontrol -i 7 /dev/cpuctl0\n\nIf bits 4 (0x10) and 11 (0x800) are set in the second response word (EBX),\nTSX is present. \n\nIn the absence of updated microcode, TAA can be mitigated by enabling the\nMDS mitigation:\n\n3. sysctl hw.mds_disable=1\n\nSystems must be running FreeBSD 11.3, FreeBSD 12.1, or later for this to\nwork. \n\n*IMPORTANT*\nIf your use case can tolerate leaving the CPU issues unmitigated and cannot\ntolerate a performance regression, ensure that the devcpu-data package is\nnot installed or is locked at 1.25 or earlier. \n\n# pkg delete devcpu-data\n\nor\n\n# pkg lock devcpu-data\n\nLater versions of the LLVM and GCC compilers will include changes that\npartially relieve the peformance impact. \n\nV.   Solution\n\nInstall the latest Intel Microcode Update via the devcpu-data port/package,\nversion 1.26 or later. \n\nUpdated microcode adds the ability to disable TSX.  With updated microcode\nthe issue can still be mitigated by enabling the MDS mitigation as\ndescribed in the workaround section, or by disabling TSX instead:\n\n1. kldload cpuctl\n\n2. cpucontrol -i 7 /dev/cpuctl0\n\nIf bit 29 (0x20000000) is set in the fourth response word (EDX), then the\n0x10a MSR is present. cpucontrol -m 0x10a /dev/cpuctl0\n\nIf bit 8 (0x100) of the response word is set, your CPU is not vulnerable to\nTAA and no further action is required. \n\nIf bit 7 (0x80) is cleared, then your CPU does not have updated microcode\nthat facilitates TSX to be disabled.  The only remedy available is to\nenable the MDS mitigation, as documented above. cpucontrol -m 0x122=3 /dev/cpuctl0\n\nRepeat step 4 for each numbered CPU that is present. \n\nA future kernel change to FreeBSD will provide automatic detection and\nmitigation for TAA. \n\nLLVM 9.0 will be updated in FreeBSD 13-current to address the JCC\npeformance impact.  Updates to prior versions of LLVM are currently being\nevaluated. \n\nVI.  Correction details\n\nThere are currently no changes in FreeBSD to address this issue. \n\nVII. \n\nSoftware Description:\n- intel-microcode: Processor microcode for Intel CPUs\n\nDetails:\n\nUSN-3977-1 provided mitigations for Microarchitectural Data Sampling\n(MDS) vulnerabilities in Intel Microcode for a large number of Intel\nprocessor families. This update provides the corresponding updated\nmicrocode mitigations for Intel Cherry Trail and Bay Trail processor\nfamilies. Relevant releases/architectures:\n\nRHV-M 4.2 - noarch\n\n3. \nIt includes the configuration of the Red Hat Support plugin, copying\ndownstream-only artifacts to the ISO domain, and links to the knowledgebase\nand other support material. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\nGentoo Linux Security Advisory                           GLSA 202003-56\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n                                           https://security.gentoo.org/\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\n Severity: High\n    Title: Xen: Multiple vulnerabilities\n     Date: March 25, 2020\n     Bugs: #686024, #699048, #699996, #702644\n       ID: 202003-56\n\n- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -\n\nSynopsis\n========\n\nMultiple vulnerabilities have been found in Xen, the worst of which\ncould allow for privilege escalation. \n\nBackground\n==========\n\nXen is a bare-metal hypervisor. \n\nAffected packages\n=================\n\n    -------------------------------------------------------------------\n     Package              /     Vulnerable     /            Unaffected\n    -------------------------------------------------------------------\n  1  app-emulation/xen          \u003c 4.12.0-r1              \u003e= 4.12.0-r1\n  2  app-emulation/xen-tools    \u003c 4.12.0-r1              \u003e= 4.12.0-r1\n    -------------------------------------------------------------------\n     2 affected packages\n\nDescription\n===========\n\nMultiple vulnerabilities have been discovered in Xen. Please review the\nreferenced CVE identifiers for details. \n\nWorkaround\n==========\n\nThere is no known workaround at this time. \n\nResolution\n==========\n\nAll Xen users should upgrade to the latest version:\n\n  # emerge --sync\n  # emerge --ask --oneshot --verbose \"\u003e=app-emulation/xen-4.12.0-r1\"\n\nReferences\n==========\n\n[  1 ] CVE-2018-12126\n       https://nvd.nist.gov/vuln/detail/CVE-2018-12126\n[  2 ] CVE-2018-12127\n       https://nvd.nist.gov/vuln/detail/CVE-2018-12127\n[  3 ] CVE-2018-12130\n       https://nvd.nist.gov/vuln/detail/CVE-2018-12130\n[  4 ] CVE-2018-12207\n       https://nvd.nist.gov/vuln/detail/CVE-2018-12207\n[  5 ] CVE-2018-12207\n       https://nvd.nist.gov/vuln/detail/CVE-2018-12207\n[  6 ] CVE-2019-11091\n       https://nvd.nist.gov/vuln/detail/CVE-2019-11091\n[  7 ] CVE-2019-11135\n       https://nvd.nist.gov/vuln/detail/CVE-2019-11135\n[  8 ] CVE-2019-18420\n       https://nvd.nist.gov/vuln/detail/CVE-2019-18420\n[  9 ] CVE-2019-18421\n       https://nvd.nist.gov/vuln/detail/CVE-2019-18421\n[ 10 ] CVE-2019-18423\n       https://nvd.nist.gov/vuln/detail/CVE-2019-18423\n[ 11 ] CVE-2019-18424\n       https://nvd.nist.gov/vuln/detail/CVE-2019-18424\n[ 12 ] CVE-2019-18425\n       https://nvd.nist.gov/vuln/detail/CVE-2019-18425\n[ 13 ] CVE-2019-19577\n       https://nvd.nist.gov/vuln/detail/CVE-2019-19577\n[ 14 ] CVE-2019-19578\n       https://nvd.nist.gov/vuln/detail/CVE-2019-19578\n[ 15 ] CVE-2019-19580\n       https://nvd.nist.gov/vuln/detail/CVE-2019-19580\n[ 16 ] CVE-2019-19581\n       https://nvd.nist.gov/vuln/detail/CVE-2019-19581\n[ 17 ] CVE-2019-19582\n       https://nvd.nist.gov/vuln/detail/CVE-2019-19582\n[ 18 ] CVE-2019-19583\n       https://nvd.nist.gov/vuln/detail/CVE-2019-19583\n\nAvailability\n============\n\nThis GLSA and any updates to it are available for viewing at\nthe Gentoo Security Website:\n\n https://security.gentoo.org/glsa/202003-56\n\nConcerns?\n=========\n\nSecurity is a primary focus of Gentoo Linux and ensuring the\nconfidentiality and security of our users\u0027 machines is of utmost\nimportance to us. Any security concerns should be addressed to\nsecurity@gentoo.org or alternatively, you may file a bug at\nhttps://bugs.gentoo.org. \n\nLicense\n=======\n\nCopyright 2020 Gentoo Foundation, Inc; referenced text\nbelongs to its owner(s). \n\nThe contents of this document are licensed under the\nCreative Commons - Attribution / Share Alike license. \n\nhttps://creativecommons.org/licenses/by-sa/2.5\n. -----BEGIN PGP SIGNED MESSAGE-----\nHash: SHA256\n\n=====================================================================\n                   Red Hat Security Advisory\n\nSynopsis:          Important: libvirt security update\nAdvisory ID:       RHSA-2019:1180-01\nProduct:           Red Hat Enterprise Linux\nAdvisory URL:      https://access.redhat.com/errata/RHSA-2019:1180\nIssue date:        2019-05-14\nCVE Names:         CVE-2018-12126 CVE-2018-12127 CVE-2018-12130 \n                   CVE-2019-11091 \n=====================================================================\n\n1. Summary:\n\nAn update for libvirt is now available for Red Hat Enterprise Linux 6. \n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section. \n\n2. Relevant releases/architectures:\n\nRed Hat Enterprise Linux Desktop (v. 6) - i386, x86_64\nRed Hat Enterprise Linux Desktop Optional (v. 6) - i386, x86_64\nRed Hat Enterprise Linux HPC Node (v. 6) - x86_64\nRed Hat Enterprise Linux HPC Node Optional (v. 6) - x86_64\nRed Hat Enterprise Linux Server (v. 6) - i386, ppc64, s390x, x86_64\nRed Hat Enterprise Linux Server Optional (v. 6) - x86_64\nRed Hat Enterprise Linux Workstation (v. 6) - i386, x86_64\nRed Hat Enterprise Linux Workstation Optional (v. 6) - x86_64\n\n3. Description:\n\nThe libvirt library contains a C API for managing and interacting with the\nvirtualization capabilities of Linux and other operating systems. In\naddition, libvirt provides tools for remote management of virtualized\nsystems. \n\nSecurity Fix(es):\n\n* A flaw was found in the implementation of the \"fill buffer\", a mechanism\nused by modern CPUs when a cache-miss is made on L1 CPU cache. If an\nattacker can generate a load operation that would create a page fault, the\nexecution will continue speculatively with incorrect data from the fill\nbuffer while the data is fetched from higher level caches. This response\ntime can be measured to infer data in the fill buffer. (CVE-2018-12130)\n\n* Modern Intel microprocessors implement hardware-level micro-optimizations\nto improve the performance of writing data back to CPU caches. The write\noperation is split into STA (STore Address) and STD (STore Data)\nsub-operations. These sub-operations allow the processor to hand-off\naddress generation logic into these sub-operations for optimized writes. \nBoth of these sub-operations write to a shared distributed processor\nstructure called the \u0027processor store buffer\u0027. As a result, an unprivileged\nattacker could use this flaw to read private data resident within the CPU\u0027s\nprocessor store buffer. (CVE-2018-12126)\n\n* Microprocessors use a \u2018load port\u2019 subcomponent to perform load operations\nfrom memory or IO. During a load operation, the load port receives data\nfrom the memory or IO subsystem and then provides the data to the CPU\nregisters and operations in the CPU\u2019s pipelines. Stale load operations\nresults are stored in the \u0027load port\u0027 table until overwritten by newer\noperations. Certain load-port operations triggered by an attacker can be\nused to reveal data about previous stale requests leaking data back to the\nattacker via a timing side-channel. (CVE-2019-11091)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage(s) listed in the References section. \n\n4. Solution:\n\nFor details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258\n\nAfter installing the updated packages, libvirtd will be restarted\nautomatically. \n\n5. Bugs fixed (https://bugzilla.redhat.com/):\n\n1646781 - CVE-2018-12126 hardware: Microarchitectural Store Buffer Data Sampling (MSBDS)\n1646784 - CVE-2018-12130 hardware: Microarchitectural Fill Buffer Data Sampling (MFBDS)\n1667782 - CVE-2018-12127 hardware: Micro-architectural Load Port Data Sampling - Information Leak (MLPDS)\n1705312 - CVE-2019-11091 hardware: Microarchitectural Data Sampling Uncacheable Memory (MDSUM)\n\n6. Package List:\n\nRed Hat Enterprise Linux Desktop (v. 6):\n\nSource:\nlibvirt-0.10.2-64.el6_10.1.src.rpm\n\ni386:\nlibvirt-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-client-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-python-0.10.2-64.el6_10.1.i686.rpm\n\nx86_64:\nlibvirt-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-client-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-client-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-python-0.10.2-64.el6_10.1.x86_64.rpm\n\nRed Hat Enterprise Linux Desktop Optional (v. 6):\n\ni386:\nlibvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.i686.rpm\n\nx86_64:\nlibvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-lock-sanlock-0.10.2-64.el6_10.1.x86_64.rpm\n\nRed Hat Enterprise Linux HPC Node (v. 6):\n\nSource:\nlibvirt-0.10.2-64.el6_10.1.src.rpm\n\nx86_64:\nlibvirt-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-client-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-client-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-python-0.10.2-64.el6_10.1.x86_64.rpm\n\nRed Hat Enterprise Linux HPC Node Optional (v. 6):\n\nx86_64:\nlibvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-lock-sanlock-0.10.2-64.el6_10.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server (v. 6):\n\nSource:\nlibvirt-0.10.2-64.el6_10.1.src.rpm\n\ni386:\nlibvirt-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-client-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-python-0.10.2-64.el6_10.1.i686.rpm\n\nppc64:\nlibvirt-0.10.2-64.el6_10.1.ppc64.rpm\nlibvirt-client-0.10.2-64.el6_10.1.ppc.rpm\nlibvirt-client-0.10.2-64.el6_10.1.ppc64.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.ppc.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.ppc64.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.ppc.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.ppc64.rpm\nlibvirt-python-0.10.2-64.el6_10.1.ppc64.rpm\n\ns390x:\nlibvirt-0.10.2-64.el6_10.1.s390x.rpm\nlibvirt-client-0.10.2-64.el6_10.1.s390.rpm\nlibvirt-client-0.10.2-64.el6_10.1.s390x.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.s390.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.s390x.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.s390.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.s390x.rpm\nlibvirt-python-0.10.2-64.el6_10.1.s390x.rpm\n\nx86_64:\nlibvirt-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-client-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-client-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-python-0.10.2-64.el6_10.1.x86_64.rpm\n\nRed Hat Enterprise Linux Server Optional (v. 6):\n\nx86_64:\nlibvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-lock-sanlock-0.10.2-64.el6_10.1.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation (v. 6):\n\nSource:\nlibvirt-0.10.2-64.el6_10.1.src.rpm\n\ni386:\nlibvirt-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-client-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-python-0.10.2-64.el6_10.1.i686.rpm\n\nx86_64:\nlibvirt-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-client-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-client-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.i686.rpm\nlibvirt-devel-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-python-0.10.2-64.el6_10.1.x86_64.rpm\n\nRed Hat Enterprise Linux Workstation Optional (v. 6):\n\nx86_64:\nlibvirt-debuginfo-0.10.2-64.el6_10.1.x86_64.rpm\nlibvirt-lock-sanlock-0.10.2-64.el6_10.1.x86_64.rpm\n\nThese packages are GPG signed by Red Hat for security.  Our key and\ndetails on how to verify the signature are available from\nhttps://access.redhat.com/security/team/key/\n\n7. References:\n\nhttps://access.redhat.com/security/cve/CVE-2018-12126\nhttps://access.redhat.com/security/cve/CVE-2018-12127\nhttps://access.redhat.com/security/cve/CVE-2018-12130\nhttps://access.redhat.com/security/cve/CVE-2019-11091\nhttps://access.redhat.com/security/vulnerabilities/mds\nhttps://access.redhat.com/security/updates/classification/#important\n\n8. Contact:\n\nThe Red Hat security contact is \u003csecalert@redhat.com\u003e. More contact\ndetails at https://access.redhat.com/security/team/contact/\n\nCopyright 2019 Red Hat, Inc. \n-----BEGIN PGP SIGNATURE-----\nVersion: GnuPG v1\n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\n71dvSxshwr0=\n=CE4I\n-----END PGP SIGNATURE-----\n\n--\nRHSA-announce mailing list\nRHSA-announce@redhat.com\nhttps://www.redhat.com/mailman/listinfo/rhsa-announce\n. These packages include redhat-release-virtualization-host,\novirt-node, and rhev-hypervisor. RHVH features a Cockpit user\ninterface for monitoring the host\u0027s resources and performing administrative\ntasks. These\npackages include redhat-release-virtualization-host, ovirt-node, and\nrhev-hypervisor. RHVH features a Cockpit user interface for\nmonitoring the host\u0027s resources and performing administrative tasks",
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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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Detection rules are retrieved from Rulezet.

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