Issued:

2021-02-02

Updated:

2021-02-02

RHSA-2021:0347 - Moderate: qemu-kvm security and bug fix update

Synopsis

Moderate: qemu-kvm security and bug fix update

Type/Severity

Security Advisory Moderate

Topic

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.

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)

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.

Affected Products

Updated Packages

• qemu-kvm-1.5.3-175.el7_9.3.src.rpm
• qemu-img-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-1.5.3-175.el7_9.3.x86_64.rpm
• qemu-kvm-tools-1.5.3-175.el7_9.3.x86_64.rpm

Fixes

• This content is not included.BZ - 1842912
• This content is not included.BZ - 1860283
• This content is not included.BZ - 1884997

CVEs

• CVE-2020-13765
• CVE-2020-16092

References

• https://access.redhat.com/security/updates/classification/#moderate

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.