- Vulnerability/
- RHSA-2021:2165
RHSA-2021:2165: Important: kpatch-patch security update
First published: Tue Jun 01 2021(Updated: )
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.<br>Security Fix(es):<br><li> 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)</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 | Affected Version | How to fix |
|---|---|---|
| redhat/kpatch-patch | <4_18_0-305-1-1.el8 | 4_18_0-305-1-1.el8 |
| redhat/kpatch-patch | <4_18_0-305-1-1.el8 | 4_18_0-305-1-1.el8 |
| redhat/kpatch-patch | <4_18_0-305-debuginfo-1-1.el8 | 4_18_0-305-debuginfo-1-1.el8 |
| redhat/kpatch-patch | <4_18_0-305-debugsource-1-1.el8 | 4_18_0-305-debugsource-1-1.el8 |
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Reference Links
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.
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