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Red Hat Enterprise Linux: RHSA-2021-0459-01 Moderate: QEMU-KVM-RHEV Risk

red hat
Calendar Grey February 9, 2021
Dist Redhat Esm H88
Canonical recommends a balanced importance patch for lxd-container to enhance security in cloud computing scenarios.
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

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: use-after-free in ip_reass() function in ip_input.c (CVE-2020-1983)
* QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c (CVE-2020-16092)
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.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat security fix moderate impact Red Hat Enterprise virtualization KVM qemu-kvm-rhev kernel-based virtualization

References

https://access.redhat.com/security/cve/CVE-2020-1983 https://access.redhat.com/security/cve/CVE-2020-16092 https://access.redhat.com/security/updates/classification#moderate

Package List

Red Hat Virtualization 4 Management Agent for RHEL 7 Hosts:
Source: qemu-kvm-rhev-2.12.0-48.el7_9.2.src.rpm
ppc64le: qemu-img-rhev-2.12.0-48.el7_9.2.ppc64le.rpm qemu-kvm-common-rhev-2.12.0-48.el7_9.2.ppc64le.rpm qemu-kvm-rhev-2.12.0-48.el7_9.2.ppc64le.rpm qemu-kvm-rhev-debuginfo-2.12.0-48.el7_9.2.ppc64le.rpm qemu-kvm-tools-rhev-2.12.0-48.el7_9.2.ppc64le.rpm
x86_64: qemu-img-rhev-2.12.0-48.el7_9.2.x86_64.rpm qemu-kvm-common-rhev-2.12.0-48.el7_9.2.x86_64.rpm qemu-kvm-rhev-2.12.0-48.el7_9.2.x86_64.rpm qemu-kvm-rhev-debuginfo-2.12.0-48.el7_9.2.x86_64.rpm qemu-kvm-tools-rhev-2.12.0-48.el7_9.2.x86_64.rpm
RHV-M 4.3:
Source: qemu-kvm-rhev-2.12.0-48.el7_9.2.src.rpm
x86_64: qemu-img-rhev-2.12.0-48.el7_9.2.x86_64.rpm qemu-kvm-common-rhev-2.12.0-48.el7_9.2.x86_64.rpm qemu-kvm-rhev-2.12.0-48.el7_9.2.x86_64.rpm qemu-kvm-rhev-debuginfo-2.12.0-48.el7_9.2.x86_64.rpm qemu-kvm-tools-rhev-2.12.0-48.el7_9.2.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


Advisory ID: RHSA-2021:0459-01
Product: Red Hat Virtualization
Advisory URL: https://access.redhat.com/errata/RHSA-2021:0459
Issue date: 2021-02-09
Keywords: Security

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 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.

Topics%20covered

Topics Covered

security advisory moderate security update Red Hat security fix moderate impact Red Hat Enterprise virtualization KVM qemu-kvm-rhev kernel-based 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

1829825 - CVE-2020-1983 QEMU: slirp: use-after-free in ip_reass() function in ip_input.c

1860283 - CVE-2020-16092 QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c

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