- Vulnerability/
- RHSA-2021:3766
RHSA-2021:3766: Important: kernel security update
First published: Tue Oct 12 2021(Updated: )
The kernel packages contain the Linux kernel, the core of any Linux operating system.<br>Security Fix(es):<br><li> kernel: Improper handling of VM_IO|VM_PFNMAP vmas in KVM can bypass RO checks (CVE-2021-22543)</li> <li> kernel: powerpc: KVM guest OS users can cause host OS memory corruption (CVE-2021-37576)</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/kernel | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-abi-whitelists | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-debug | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-debug-debuginfo | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-debug-devel | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-debuginfo | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-devel | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-doc | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-headers | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-tools | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-tools-debuginfo | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-tools-libs | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/kernel-tools-libs-devel | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/perf | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/perf-debuginfo | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/python-perf | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
| redhat/python-perf-debuginfo | <3.10.0-514.93.1.el7 | 3.10.0-514.93.1.el7 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
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.
- agent/severity
- agent/references
- agent/last-modified-date
- agent/softwarecombine
- agent/type
- agent/first-publish-date
- agent/remedy
- agent/title
- agent/description
- collector/redhat-errata
- source/Red Hat
- anchor-id/RHSA-2021:3766
- agent/software-canonical-lookup
- agent/event
- agent/trending
- agent/tags
- agent/source
- package-manager/redhat