RedHat: RHSA-2020-0666:01 Moderate: qemu-kvm security and enhancement update
Summary
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)
Summary
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.
References
https://access.redhat.com/security/cve/CVE-2019-11135 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/solutions/tsx-asynchronousabort
Package List
Red Hat Enterprise Linux ComputeNode Optional EUS (v. 7.6):
Source:
qemu-kvm-1.5.3-160.el7_6.5.src.rpm
x86_64:
qemu-img-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-common-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-tools-1.5.3-160.el7_6.5.x86_64.rpm
Red Hat Enterprise Linux Server EUS (v. 7.6):
Source:
qemu-kvm-1.5.3-160.el7_6.5.src.rpm
x86_64:
qemu-img-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-common-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-160.el7_6.5.x86_64.rpm
qemu-kvm-tools-1.5.3-160.el7_6.5.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/
Topic
An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.6Extended Update Support.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.
Topic
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
Bugs Fixed
1753062 - CVE-2019-11135 hw: TSX Transaction Asynchronous Abort (TAA)
