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RedHat: RHSA-2020-2773-01 Important: QEMU OOB Access Risk

red hat
Calendar Grey June 30, 2020
Dist Redhat Esm H88
CentOS announced a critical patch for the kernel:centos pertaining to CentOS 8.2, fixing potential buffer overflow vulnerabilities.
An update for the virt:rhel module is now available for Red Hat Enterprise Linux 8.1 Extended Update Support

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: Slirp: potential OOB access due to unsafe snprintf() usages (CVE-2020-8608)
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 Red Hat important security impact QEMU kernel-based virtualization virt:rhel

References

https://access.redhat.com/security/cve/CVE-2020-8608 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux AppStream EUS (v. 8.1):
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+6762+8a18e63e.4.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-2020:2773-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:2773
Issue date: 2020-06-30

Topic

An update for the virt:rhel module is now available for Red Hat EnterpriseLinux 8.1 Extended Update Support.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 Red Hat important security impact QEMU kernel-based virtualization virt:rhel

Relevant Releases Architectures

Red Hat CodeReady Linux Builder EUS (v. 8.1) - aarch64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux AppStream EUS (v. 8.1) - aarch64, noarch, ppc64le, s390x, x86_64

Bugs Fixed

1798453 - CVE-2020-8608 QEMU: Slirp: potential OOB access due to unsafe snprintf() usages

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