RHSA-2021:4768: Important: kernel security update
The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> kernel: use-after-free in drivers/infiniband/core/ucma.c ctx use-after-free (CVE-2020-36385)</li> <li> kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653)</li> 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-2021:4768?
The severity of RHSA-2021:4768 is considered important due to multiple vulnerabilities in the Linux kernel.
How do I fix RHSA-2021:4768?
To fix RHSA-2021:4768, update the kernel package to version 3.10.0-514.95.1.el7 or later.
What vulnerabilities are addressed in RHSA-2021:4768?
RHSA-2021:4768 addresses a use-after-free vulnerability in the infiniband core and a nested virtualization issue in KVM.
Which systems are affected by RHSA-2021:4768?
RHSA-2021:4768 affects systems running certain versions of the Red Hat kernel package.
Is a reboot required after applying the fix for RHSA-2021:4768?
Yes, a reboot is required after applying the kernel update to ensure the changes take effect.