RHSA-2021:2165: Important: kpatch-patch security update
This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.Security Fix(es): kernel: userspace applications can misuse the KVM API to cause a write of 16 bytes at an offset up to 32 GB from vcpu->run (CVE-2021-3501) 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-2021:2165?
The severity of RHSA-2021:2165 is classified as Medium.
How do I fix RHSA-2021:2165?
To fix RHSA-2021:2165, apply the latest kpatch-patch package updates as recommended by Red Hat.
What vulnerabilities does RHSA-2021:2165 address?
RHSA-2021:2165 addresses a vulnerability where userspace applications can misuse the KVM API to cause unwanted memory writes.
Which versions of kpatch-patch are affected by RHSA-2021:2165?
RHSA-2021:2165 affects kpatch-patch versions prior to 4_18_0-305-1-1.el8.
Is RHSA-2021:2165 applicable for all architectures?
RHSA-2021:2165 is specifically applicable for the el8 and x86_64 architectures.