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Red Hat: RHSA-2019-3179-01 Important: qemu-kvm-rhev DoS Threat Fix

red hat
Calendar Grey October 22, 2019
Dist Redhat Esm H88
A crucial update addressing security vulnerabilities and bug resolutions for qemu-kvm-rhev is now accessible for Red Hat Virtualization on RHEL 7 systems.
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. Red Hat Product Security has rated...

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.

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):
* QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378)
* QEMU: qxl: null pointer dereference while releasing spice resources (CVE-2019-12155)
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):
* ccid: Fix incorrect dwProtocol advertisement of T=0 (BZ#1729880)
* QEMU gets stuck on resume/cont call from libvirt (BZ#1741937)
* [v2v] Migration performance regression (BZ#1743322)
* qemu, qemu-img fail to detect alignment with XFS and Gluster/XFS on 4k block device (BZ#1745443)
* qemu-kvm: backport cpuidle-haltpoll support (BZ#1746282)
* qemu aborts in blockCommit: qemu-kvm: block.c:3486 (BZ#1750322)

Topics%20covered

Topics Covered

security advisory red hat bug fix important heap overflow null pointer qemu-kvm-rhev

References

https://access.redhat.com/security/cve/CVE-2019-12155 https://access.redhat.com/security/cve/CVE-2019-14378 https://access.redhat.com/security/updates/classification#important

Package List

Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts:
Source: qemu-kvm-rhev-2.12.0-33.el7_7.4.src.rpm
ppc64le: qemu-img-rhev-2.12.0-33.el7_7.4.ppc64le.rpm qemu-kvm-common-rhev-2.12.0-33.el7_7.4.ppc64le.rpm qemu-kvm-rhev-2.12.0-33.el7_7.4.ppc64le.rpm qemu-kvm-rhev-debuginfo-2.12.0-33.el7_7.4.ppc64le.rpm qemu-kvm-tools-rhev-2.12.0-33.el7_7.4.ppc64le.rpm
x86_64: qemu-img-rhev-2.12.0-33.el7_7.4.x86_64.rpm qemu-kvm-common-rhev-2.12.0-33.el7_7.4.x86_64.rpm qemu-kvm-rhev-2.12.0-33.el7_7.4.x86_64.rpm qemu-kvm-rhev-debuginfo-2.12.0-33.el7_7.4.x86_64.rpm qemu-kvm-tools-rhev-2.12.0-33.el7_7.4.x86_64.rpm
RHV-M 4.3:
Source: qemu-kvm-rhev-2.12.0-33.el7_7.4.src.rpm
x86_64: qemu-img-rhev-2.12.0-33.el7_7.4.x86_64.rpm qemu-kvm-common-rhev-2.12.0-33.el7_7.4.x86_64.rpm qemu-kvm-rhev-2.12.0-33.el7_7.4.x86_64.rpm qemu-kvm-rhev-debuginfo-2.12.0-33.el7_7.4.x86_64.rpm qemu-kvm-tools-rhev-2.12.0-33.el7_7.4.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
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2019:3179-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2019:3179
Issue date: 2019-10-22

Topic

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.

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.

Topics%20covered

Topics Covered

security advisory red hat bug fix important heap overflow null pointer qemu-kvm-rhev

Relevant Releases Architectures

RHV-M 4.3 - x86_64

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

Bugs Fixed

1712670 - CVE-2019-12155 QEMU: qxl: null pointer dereference while releasing spice resources

1729880 - ccid: Fix incorrect dwProtocol advertisement of T=0 [rhel-7.7.z]

1734745 - CVE-2019-14378 QEMU: slirp: heap buffer overflow during packet reassembly

1743322 - [v2v] Migration performance regression [rhel-7.7.z]

1745443 - qemu, qemu-img fail to detect alignment with XFS and Gluster/XFS on 4k block device [rhel-7.7.z]

1746282 - qemu-kvm: backport cpuidle-haltpoll support [rhel-7.7.z]

1750322 - qemu aborts in blockCommit: qemu-kvm: block.c:3486 [rhel-7.7.z]

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