RHSA-2020:2342: Important: qemu-kvm-rhev bug fix update
First published: Mon Jun 01 2020(Updated: )
KVM (Kernel-based Virtual Machine) is a full virtualization solution for Linux on a variety of architectures. The qemu-kvm-rhev packages provide the user-space component for running virtual machines that use KVM in environments managed by Red Hat products.<br>Security Fix(es):<br><li> CVE-2020-8608 QEMU: Slirp: potential OOB access due to unsafe snprintf() usages</li> <li> CVE-2020-7039 QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()</li> <li> CVE-2019-14378 QEMU: slirp: heap buffer overflow during packet reassembly</li> This update fixes the following bug:<br><li> BZ 1804577 Backport: Passthrough host CPU microcode version to KVM guest if using CPU passthrough to RHEL 7.7/7.8 [rhel-7.6.z] </li> Users of qemu-kvm are advised to upgrade to these updated packages. 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 Software | Affected Version | How to fix |
|---|---|---|
| redhat/qemu-kvm-rhev | <2.12.0-18.el7_6.11 | 2.12.0-18.el7_6.11 |
| redhat/qemu-img-rhev | <2.12.0-18.el7_6.11 | 2.12.0-18.el7_6.11 |
| redhat/qemu-kvm-common-rhev | <2.12.0-18.el7_6.11 | 2.12.0-18.el7_6.11 |
| redhat/qemu-kvm-rhev | <2.12.0-18.el7_6.11 | 2.12.0-18.el7_6.11 |
| redhat/qemu-kvm-rhev-debuginfo | <2.12.0-18.el7_6.11 | 2.12.0-18.el7_6.11 |
| redhat/qemu-kvm-tools-rhev | <2.12.0-18.el7_6.11 | 2.12.0-18.el7_6.11 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1734745
- https://bugzilla.redhat.com/show_bug.cgi?id=1791551
- https://bugzilla.redhat.com/show_bug.cgi?id=1798453
- https://bugzilla.redhat.com/show_bug.cgi?id=1804577
- https://access.redhat.com/security/updates/classification/#important
- https://access.redhat.com/errata/RHSA-2020:2342 (Advisory)
Frequently Asked Questions
What is the severity of RHSA-2020:2342?
The severity of RHSA-2020:2342 is categorized as important as it addresses security vulnerabilities in KVM components.
How do I fix RHSA-2020:2342?
To fix RHSA-2020:2342, update the qemu-kvm-rhev and related packages to version 2.12.0-18.el7_6.11 or higher.
What packages are affected by RHSA-2020:2342?
The affected packages in RHSA-2020:2342 include qemu-kvm-rhev, qemu-img-rhev, qemu-kvm-common-rhev, and others related to KVM.
What is the purpose of the qemu-kvm-rhev package mentioned in RHSA-2020:2342?
The qemu-kvm-rhev package provides the user-space components necessary for running virtual machines using KVM in Red Hat environments.
Is there a need to reboot the system after applying the RHSA-2020:2342 fix?
Rebooting the system may be necessary after applying the fix for RHSA-2020:2342 to ensure that all components are using the updated versions.
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