RHSA-2021:3909: Moderate: kernel-rt security and bug fix update
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements.Security Fix(es): kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653) kernel: SVM nested virtualization issue in KVM (VMLOAD/VMSAVE) (CVE-2021-3656) 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): kernel-rt: update RT source tree to the RHEL-8.2.z source tree (BZ#2009052)
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:3909?
The severity of RHSA-2021:3909 is classified as moderate.
How do I fix RHSA-2021:3909?
To fix RHSA-2021:3909, update the kernel-rt packages to version 4.18.0-193.68.1.rt13.118.el8_2.
Which packages are affected by RHSA-2021:3909?
The affected packages in RHSA-2021:3909 include kernel-rt, kernel-rt-core, and kernel-rt-debug among others.
What vulnerabilities are addressed in RHSA-2021:3909?
RHSA-2021:3909 addresses SVM nested virtualization issues in KVM related to CVE-2021-3653.
What do I need to consider before applying the RHSA-2021:3909 update?
Before applying the RHSA-2021:3909 update, ensure that your system and applications are compatible with the kernel-rt version 4.18.0-193.68.1.rt13.118.el8_2.