RedHat: RHSA-2020-0730:01 Important: qemu-kvm-rhev security, bug fix,
Summary
KVM (Kernel-based Virtual Machine) is a full virtualization solution for
Linux on a variety of architectures. The qemu-kvm-rhev packages provide the
user-space component for running virtual machines that use KVM in
environments managed by Red Hat products.
Security Fix(es):
* hw: TSX Transaction Asynchronous Abort (TAA) (CVE-2019-11135)
* QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI
Server (CVE-2020-1711)
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):
* [Intel 7.6.z Bug] [KVM][CLX] CPUID_7_0_EDX_ARCH_CAPABILITIES is not
enabled in VM qemu-kvm-rhev (BZ#1730601)
* qemu-kvm-rhev: backport cpuidle-haltpoll support (BZ#1746281)
Enhancement(s):
* [Intel 7.7 FEAT] MDS_NO exposure to guest - qemu-kvm-rhev (BZ#1743632)
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/2974891
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/cve/CVE-2020-1711 https://access.redhat.com/security/updates/classification/#important https://access.redhat.com/solutions/tsx-asynchronousabort
Package List
RHV-M 4.2:
Source:
qemu-kvm-rhev-2.12.0-18.el7_6.9.src.rpm
x86_64:
qemu-img-rhev-2.12.0-18.el7_6.9.x86_64.rpm
qemu-kvm-common-rhev-2.12.0-18.el7_6.9.x86_64.rpm
qemu-kvm-rhev-2.12.0-18.el7_6.9.x86_64.rpm
qemu-kvm-rhev-debuginfo-2.12.0-18.el7_6.9.x86_64.rpm
qemu-kvm-tools-rhev-2.12.0-18.el7_6.9.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-rhev is now available for Red Hat VirtualizationEngine 4.2.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.
Topic
Relevant Releases Architectures
RHV-M 4.2 - x86_64
Bugs Fixed
1746281 - qemu-kvm-rhev: backport cpuidle-haltpoll support [rhel-7.6.z]
1753062 - CVE-2019-11135 hw: TSX Transaction Asynchronous Abort (TAA)
1794290 - CVE-2020-1711 QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server
