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Red Hat Enterprise Linux 8: RHSA-2020-1358 Critical Update for Virt RHEL

red hat
Calendar Grey April 7, 2020
Dist Redhat Esm H88
Important security update for Red Hat's virt:rhel modules. Learn impact details and how to apply the update!
An update for the virt:rhel and virt-devel:rhel modules is now available for Red Hat Enterprise Linux 8

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

Summary

Kernel-based Virtual Machine (KVM) offers a full virtualization solution for Linux on numerous hardware platforms. The virt:rhel module contains packages which provide user-space components used to run virtual machines using KVM. The packages also provide APIs for managing and interacting with the virtualized systems.
Security Fix(es):
* QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server (CVE-2020-1711)
* QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039)
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):
* libvirtd: error : virCPUx86UpdateLive:3110 : operation failed: guest CPU doesn't match specification: missing features: fxsr_opt (BZ#1809510)

Topics%20covered

Topics Covered

security advisory important red hat enterprise linux libvirt qemu kernel-based virtualization virt:rhel

References

https://access.redhat.com/security/cve/CVE-2020-1711 https://access.redhat.com/security/cve/CVE-2020-7039 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream (v. 8):
Source: SLOF-20171214-6.gitfa98132.module+el8.1.0+4066+0f1aadab.src.rpm hivex-1.3.15-7.module+el8.1.0+4066+0f1aadab.src.rpm libguestfs-1.38.4-14.module+el8.1.0+4066+0f1aadab.src.rpm libguestfs-winsupport-8.0-4.module+el8.1.0+4066+0f1aadab.src.rpm libiscsi-1.18.0-8.module+el8.1.0+4066+0f1aadab.src.rpm libvirt-4.5.0-35.3.module+el8.1.0+5931+8897e7e1.src.rpm libvirt-dbus-1.2.0-3.module+el8.1.0+4066+0f1aadab.src.rpm libvirt-python-4.5.0-2.module+el8.1.0+4066+0f1aadab.src.rpm nbdkit-1.4.2-5.module+el8.1.0+4066+0f1aadab.src.rpm netcf-0.2.8-12.module+el8.1.0+4066+0f1aadab.src.rpm perl-Sys-Virt-4.5.0-5.module+el8.1.0+4066+0f1aadab.src.rpm qemu-kvm-2.12.0-88.module+el8.1.0+5708+85d8e057.3.src.rpm seabios-1.11.1-4.module+el8.1.0+4066+0f1aadab.src.rpm sgabios-0.20170427git-3.module+el8.1.0+4066+0f1aadab.src.rpm supermin-5.1.19-9.module+el8.1.0+4066+0f1aadab.src.rpm
aarch64: hivex-1.3.15-7.module+el8.1.0+4066+0f1aadab.aarch64.rpm hivex-debuginfo-1.3.15-7.module+el8.1.0+4066+0f1aadab.aarch64.rpm hivex-debugsource-1.3.15-7.module+el8.1.0+4066+0f1aadab.aarch64.rpm hivex-devel-1.3.15-7.module+el8.1.0+4066+0f1aadab.aarch64.rpm libguestfs-1.38.4-14.module+el8.1.0+4066+0f1aadab.aarch64.rpm

Read the Full Advisory


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:1358-01
Product: Red Hat Enterprise Linux
Advisory URL:
Issue date: 2020-04-07

Topic

An update for the virt:rhel and virt-devel:rhel modules is now availablefor Red Hat Enterprise Linux 8.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 important red hat enterprise linux libvirt qemu kernel-based virtualization virt:rhel

Relevant Releases Architectures

Red Hat CodeReady Linux Builder (v. 8) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux AppStream (v. 8) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1791551 - CVE-2020-7039 QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()

1794290 - CVE-2020-1711 QEMU: block: iscsi: OOB heap access via an unexpected response of iSCSI Server

1809510 - libvirtd: error : virCPUx86UpdateLive:3110 : operation failed: guest CPU doesn't match specification: missing features: fxsr_opt [rhel-8.1.0.z]

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