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Red Hat Enterprise Linux 7 RHSA-2021:0347 Moderate: QEMU-KVM Fix

red hat
Calendar Grey February 2, 2021
Dist Redhat Esm H88
Explore the specifics of the qemu-kvm security patch for Red Hat Enterprise Linux that tackles significant vulnerabilities and outlines the necessary application procedures.
An update for qemu-kvm is now available for Red Hat Enterprise Linux 7

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.

Summary

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)

Topics%20covered

Topics Covered

security advisory security update bug fix security fix Red Hat Enterprise Linux moderate severity out of bounds access qemu-kvm

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

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

Read the Full Advisory


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

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 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 security update bug fix security fix Red Hat Enterprise Linux moderate severity out of bounds access qemu-kvm

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

Bugs Fixed

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

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