RedHat: RHSA-2021-0459:01 Moderate: qemu-kvm-rhev security update
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.
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-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/
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.
Topic
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