Executive Summary

Summary
Title qemu-kvm security and enhancement update
Informations
Name RHSA-2020:0666 First vendor Publication 2020-03-03
Vendor RedHat Last vendor Modification 2020-03-03
Severity (Vendor) N/A Revision 01

Security-Database Scoring CVSS v3

Cvss vector : CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Overall CVSS Score 6.5
Base Score 6.5 Environmental Score 6.5
impact SubScore 4 Temporal Score 6.5
Exploitabality Sub Score 2
 
Attack Vector Local Attack Complexity Low
Privileges Required Low User Interaction None
Scope Changed Confidentiality Impact High
Integrity Impact None Availability Impact None
Calculate full CVSS 3.0 Vectors scores

Security-Database Scoring CVSS v2

Cvss vector : (AV:L/AC:L/Au:N/C:P/I:N/A:N)
Cvss Base Score 2.1 Attack Range Local
Cvss Impact Score 2.9 Attack Complexity Low
Cvss Expoit Score 3.9 Authentication None Required
Calculate full CVSS 2.0 Vectors scores

Detail

Problem Description:

An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.6 Extended Update Support.

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 ComputeNode Optional EUS (v. 7.6) - x86_64 Red Hat Enterprise Linux Server EUS (v. 7.6) - x86_64

3. Description:

Kernel-based Virtual Machine (KVM) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM.

Security Fix(es):

* hw: TSX Transaction Asynchronous Abort (TAA) (CVE-2019-11135)

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.

Enhancement(s):

* [Intel 7.8 FEAT] MDS_NO exposure to guest - qemu-kvm (BZ#1755332)

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

After installing this update, shut down all running virtual machines. Once all virtual machines have shut down, start them again for this update to take effect.

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

1753062 - CVE-2019-11135 hw: TSX Transaction Asynchronous Abort (TAA)

Original Source

Url : https://rhn.redhat.com/errata/RHSA-2020-0666.html

CPE : Common Platform Enumeration

TypeDescriptionCount
Application 1
Os 1
Os 2
Os 2

Alert History

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0
1
Date Informations
2020-05-23 13:03:45
  • Multiple Updates
2020-03-19 13:20:03
  • First insertion