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Red Hat Security Advisory

Synopsis:          Moderate: qemu-kvm security and bug fix update
Advisory ID:       RHSA-2021:0347-01
Product:           Red Hat Enterprise Linux
Advisory URL:      https://access.redhat.com/errata/RHSA-2021:0347
Issue date:        2021-02-02
CVE Names:         CVE-2020-13765 CVE-2020-16092
====================================================================
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 Moderate. 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: loader: OOB access while loading registered ROM may lead to code
execution (CVE-2020-13765)

* 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.

Bug Fix(es):

* qemu-kvm FTBFS on rhel7.9 (BZ#1884997)

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/):

1842912 - CVE-2020-13765 QEMU: loader: OOB access while loading registered ROM may lead to code execution
1860283 - CVE-2020-16092 QEMU: reachable assertion failure in net_tx_pkt_add_raw_fragment() in hw/net/net_tx_pkt.c
1884997 - qemu-kvm FTBFS on rhel7.9

6. Package List:

Red Hat Enterprise Linux Client (v. 7):

Source:
qemu-kvm-1.5.3-175.el7_9.3.src.rpm

x86_64:
qemu-img-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-common-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-tools-1.5.3-175.el7_9.3.x86_64.rpm

Red Hat Enterprise Linux ComputeNode Optional (v. 7):

Source:
qemu-kvm-1.5.3-175.el7_9.3.src.rpm

x86_64:
qemu-img-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-common-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-tools-1.5.3-175.el7_9.3.x86_64.rpm

Red Hat Enterprise Linux Server (v. 7):

Source:
qemu-kvm-1.5.3-175.el7_9.3.src.rpm

x86_64:
qemu-img-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-common-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-tools-1.5.3-175.el7_9.3.x86_64.rpm

Red Hat Enterprise Linux Workstation (v. 7):

Source:
qemu-kvm-1.5.3-175.el7_9.3.src.rpm

x86_64:
qemu-img-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-common-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-debuginfo-1.5.3-175.el7_9.3.x86_64.rpm
qemu-kvm-tools-1.5.3-175.el7_9.3.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-2020-13765
https://access.redhat.com/security/cve/CVE-2020-16092
https://access.redhat.com/security/updates/classification/#moderate

8. Contact:

The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/

Copyright 2021 Red Hat, Inc.
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