Red Hat Security Advisory 2020-4079-01 - Kernel-based Virtual Machine is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm packages provide the user-space component for running virtual machines that use KVM. Issues addressed include a use-after-free vulnerability.
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Red Hat Security Advisory
Synopsis: Important: qemu-kvm security update
Advisory ID: RHSA-2020:4079-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:4079
Issue date: 2020-09-29
CVE Names: CVE-2020-1983 CVE-2020-14364
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1. Summary:
An update for qemu-kvm is now available for Red Hat Enterprise Linux 7.
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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Client (v. 7) - x86_64
Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64
Red Hat Enterprise Linux Server (v. 7) - x86_64
Red Hat Enterprise Linux Workstation (v. 7) - x86_64
3. Description:
Kernel-based Virtual Machine (KVM) is a full virtualization solution for
Linux on a variety of architectures. The qemu-kvm packages provide the
user-space component for running virtual machines that use KVM.
Security Fix(es):
* QEMU: usb: out-of-bounds r/w access issue while processing usb packets
(CVE-2020-14364)
* QEMU: slirp: use-after-free in ip_reass() function in ip_input.c
(CVE-2020-1983)
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.
4. Solution:
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
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.
5. Bugs fixed (https://bugzilla.redhat.com/):
1829825 - CVE-2020-1983 QEMU: slirp: use-after-free in ip_reass() function in ip_input.c
1869201 - CVE-2020-14364 QEMU: usb: out-of-bounds r/w access issue while processing usb packets
6. Package List:
Red Hat Enterprise Linux Client (v. 7):
Source:
qemu-kvm-1.5.3-175.el7_9.1.src.rpm
x86_64:
qemu-img-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-common-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-tools-1.5.3-175.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
Source:
qemu-kvm-1.5.3-175.el7_9.1.src.rpm
x86_64:
qemu-img-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-common-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-tools-1.5.3-175.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source:
qemu-kvm-1.5.3-175.el7_9.1.src.rpm
x86_64:
qemu-img-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-common-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-tools-1.5.3-175.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source:
qemu-kvm-1.5.3-175.el7_9.1.src.rpm
x86_64:
qemu-img-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-common-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-175.el7_9.1.x86_64.rpm
qemu-kvm-tools-1.5.3-175.el7_9.1.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/
7. References:
https://access.redhat.com/security/cve/CVE-2020-1983
https://access.redhat.com/security/cve/CVE-2020-14364
https://access.redhat.com/security/updates/classification/#important
https://bugzilla.redhat.com/show_bug.cgi?id69693
https://bugzilla.redhat.com/show_bug.cgi?id37565
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
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