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Red Hat 7: RHSA-2020-4079-01 Important: qemu-kvm Security Flaws

red hat
Calendar Grey September 30, 2020
Dist Redhat Esm H88
A crucial security patch from Red Hat for qemu-kvm fixes serious vulnerabilities. Ensure your system is updated to maintain security.
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: 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.

Topics%20covered

Topics Covered

security advisory security issue Red Hat update DoS important qemu-kvm

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?id=1869693 https://bugzilla.redhat.com/show_bug.cgi?id=1837565

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

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

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

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 Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security issue Red Hat update DoS important 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

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

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