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Red Hat Virtualization: RHSA-2020:3267-01 Low Severity Memory Leak Fix

red hat
Calendar Grey August 3, 2020
Dist Redhat Esm H88
A new release for qemu-kvm-rhev resolves a minor severity problem related to memory overflow and includes various corrections aimed at Red Hat customers.
An update for qemu-kvm-rhev is now available for Red Hat Virtualization 4 for Red Hat Enterprise Linux 7 and Red Hat Virtualization Engine 4.3

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/2974891

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):
* CVE-2019-20382 QEMU: vnc: memory leakage upon disconnect
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):
* Add support for newer glusterfs (BZ#1802216)
* Backport: Passthrough host CPU microcode version to KVM guest if using CPU passthrough to RHEL 7.7/7.8 (BZ#1791653)
* After hot unplug virtio-net and vfio nic, hot plug vfio-pci device fails in Win2019 guest (BZ#1721403)
* qemu-kvm-rhev: Qemu: seccomp: blacklist is not applied to all threads (BZ#1618504)
* Fix overzealous I/O request splitting performance regression (BZ#1819253)

Topics%20covered

Topics Covered

security advisory bug fix low severity qemu-kvm-rhev memory leakage Red Hat Virtualization

References

https://access.redhat.com/security/cve/CVE-2019-20382 https://access.redhat.com/security/updates/classification/#low

Package List

Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts:
Source: qemu-kvm-rhev-2.12.0-48.el7.src.rpm
ppc64le: qemu-img-rhev-2.12.0-48.el7.ppc64le.rpm qemu-kvm-common-rhev-2.12.0-48.el7.ppc64le.rpm qemu-kvm-rhev-2.12.0-48.el7.ppc64le.rpm qemu-kvm-rhev-debuginfo-2.12.0-48.el7.ppc64le.rpm qemu-kvm-tools-rhev-2.12.0-48.el7.ppc64le.rpm
x86_64: qemu-img-rhev-2.12.0-48.el7.x86_64.rpm qemu-kvm-common-rhev-2.12.0-48.el7.x86_64.rpm qemu-kvm-rhev-2.12.0-48.el7.x86_64.rpm qemu-kvm-rhev-debuginfo-2.12.0-48.el7.x86_64.rpm qemu-kvm-tools-rhev-2.12.0-48.el7.x86_64.rpm
RHV-M 4.3:
Source: qemu-kvm-rhev-2.12.0-48.el7.src.rpm
x86_64: qemu-img-rhev-2.12.0-48.el7.x86_64.rpm qemu-kvm-common-rhev-2.12.0-48.el7.x86_64.rpm qemu-kvm-rhev-2.12.0-48.el7.x86_64.rpm qemu-kvm-rhev-debuginfo-2.12.0-48.el7.x86_64.rpm qemu-kvm-tools-rhev-2.12.0-48.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/


Severity
low
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:3267-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2020:3267
Issue date: 2020-08-03

Topic

An update for qemu-kvm-rhev is now available for Red Hat Virtualization 4for Red Hat Enterprise Linux 7 and Red Hat Virtualization Engine 4.3.Red Hat Product Security has rated this update as having a security impactof Low. 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.

Topics%20covered

Topics Covered

security advisory bug fix low severity qemu-kvm-rhev memory leakage Red Hat Virtualization

Relevant Releases Architectures

RHV-M 4.3 - x86_64

Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts - ppc64le, x86_64

Bugs Fixed

1721403 - After hot unplug virtio-net and vfio nic, hot plug vfio-pci device fails in Win2019 guest

1791653 - Backport: Passthrough host CPU microcode version to KVM guest if using CPU passthrough to RHEL 7.7/7.8

1802216 - Add support for newer glusterfs

1810390 - CVE-2019-20382 QEMU: vnc: memory leakage upon disconnect

1819253 - Fix overzealous I/O request splitting performance regression

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