RHSA-2021:3767: Important: kernel security update
The kernel packages contain the Linux kernel, the core of any Linux operating system.Security Fix(es): kernel: Improper handling of VMIO|VMPFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543) kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653) 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.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of RHSA-2021:3767?
The severity of RHSA-2021:3767 is classified as important.
How do I fix RHSA-2021:3767?
To fix RHSA-2021:3767, update your kernel to version 3.10.0-327.101.1.el7 or later.
Which packages are affected by RHSA-2021:3767?
The affected packages include kernel, kernel-debug, kernel-devel, and other related kernel packages.
What vulnerabilities are addressed in RHSA-2021:3767?
RHSA-2021:3767 addresses a handling issue in KVM that can bypass read-only checks and a nested virtualization issue.
What should I do if I cannot update to the recommended version for RHSA-2021:3767?
If you cannot update, monitor for alternative mitigations and consult your security team for guidance.