CVE-2021-3653
kernel-rt-debug-modules: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high...
CVE-2021-3653 is fixed in 47 products on 1 platform, first by RHSA-2021:3548, released September 15, 2021. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
8.8
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0045
39th percentile
The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high determinism requirements. Security Fix(es): * kernel: SVM nested virtualization issue in KVM (AVIC support) (CVE-2021-3653) 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. Bug Fix(es): * kernel-rt: update RT source tree to the RHEL-8.4.z source tree (BZ#2001131)
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| bpftool · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-abi-stablelists · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-abi-stablelists · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-core · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-core · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-cross-headers · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-cross-headers · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-debug · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-debug · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-debug-core · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-debug-core · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-debug-devel · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-debug-devel · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-debug-modules · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-debug-modules · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-debug-modules-extra · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-debug-modules-extra · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-devel · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-devel · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-doc · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-doc · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-headers · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-modules · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-modules · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-modules-extra · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-modules-extra · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-rt · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-rt-core · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-rt-debug · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-rt-debug-core · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-rt-debug-devel · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-rt-debug-kvm · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-rt-debug-modules · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-rt-debug-modules-extra · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-rt-devel · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-rt-kvm · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-rt-modules · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-rt-modules-extra · RHEL 8 | 0:4.18.0-305.19.1.rt7.91.el8_4 | RHSA-2021:3547 | Sep 15, 2021 |
| kernel-tools · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-tools · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-tools-libs · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-tools-libs · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-tools-libs-devel · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-tools-libs-devel · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
| kernel-uek · ol 8 | 0:5.4.17-2136.301.1.2.el8uek | ELSA-2021-9564 | Nov 23, 2021 |
| kernel-uek-container · ol 8 | 0:5.4.17-2136.301.1.2.el8 | ELSA-2021-9565 | Nov 23, 2021 |
| kernel-uek-container-debug · ol 8 | 0:5.4.17-2136.301.1.2.el8 | ELSA-2021-9565 | Nov 23, 2021 |
| kernel-uek-debug · ol 8 | 0:5.4.17-2136.301.1.2.el8uek | ELSA-2021-9564 | Nov 23, 2021 |
| kernel-uek-debug-devel · ol 8 | 0:5.4.17-2136.301.1.2.el8uek | ELSA-2021-9564 | Nov 23, 2021 |
| kernel-uek-devel · ol 8 | 0:5.4.17-2136.301.1.2.el8uek | ELSA-2021-9564 | Nov 23, 2021 |
| kernel-uek-doc · ol 8 | 0:5.4.17-2136.301.1.2.el8uek | ELSA-2021-9564 | Nov 23, 2021 |
| kernel-uek-tools · ol 8 | 0:5.4.17-2136.301.1.2.el7uek | ELSA-2021-9564 | Nov 23, 2021 |
| kernel-uek-tools-libs · ol 8 | 0:5.4.17-2136.301.1.2.el7uek | ELSA-2021-9564 | Nov 23, 2021 |
| kernel-zfcpdump · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-zfcpdump-core · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-zfcpdump-devel · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-zfcpdump-modules · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| kernel-zfcpdump-modules-extra · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| perf · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| perf · ol 8 | 0:5.4.17-2136.301.1.2.el7uek | ELSA-2021-9564 | Nov 23, 2021 |
| python-perf · ol 8 | 0:5.4.17-2136.301.1.2.el7uek | ELSA-2021-9564 | Nov 23, 2021 |
| python3-perf · RHEL 8 | 0:4.18.0-305.19.1.el8_4 | RHSA-2021:3548 | Sep 15, 2021 |
| python3-perf · ol 8 | 0:4.18.0-305.19.1.el8_4 | ELSA-2021-3548 | Sep 16, 2021 |
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