RHSA-2021:3766: 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: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576) 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-2021:3766?
The severity of RHSA-2021:3766 is classified as important.
How do I fix RHSA-2021:3766?
To fix RHSA-2021:3766, update the kernel to version 3.10.0-514.93.1.el7.
What vulnerabilities are addressed in RHSA-2021:3766?
RHSA-2021:3766 addresses improper handling of VM_IO|VM_PFNMAP vmas in KVM (CVE-2021-22543) and other memory-related issues.
Which systems are affected by RHSA-2021:3766?
RHSA-2021:3766 affects systems running specific versions of the Linux kernel, including 3.10.0-514.93.1.el7.
Is a reboot required after applying the fix for RHSA-2021:3766?
Yes, a reboot is required for the changes to take effect after applying the update for RHSA-2021:3766.