CVE-2021-4028
kernel-rt-debug: The kernel-rt packages provide the Real Time Linux Kernel, which enables fine-tuning for systems with extremely high...
CVE-2021-4028 is fixed in 43 products on 1 platform, first by RHSA-2022:1550, released April 26, 2022. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.8
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0032
24th 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: use-after-free in RDMA listen() (CVE-2021-4028) * kernel: heap out of bounds write in nf_dup_netdev.c (CVE-2022-25636) 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-8.5.z4 source tree (BZ#2067266)
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| bpftool · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel · rocky 8 | 0:4.18.0-348.23.1.el8_5 | RLSA-2022:1550 | Apr 26, 2022 |
| kernel-abi-stablelists · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-abi-stablelists · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-core · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-core · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-cross-headers · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-debug · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-debug · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-debug-core · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-debug-core · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-debug-devel · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-debug-devel · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-debug-modules · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-debug-modules · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-debug-modules-extra · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-debug-modules-extra · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-devel · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-devel · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-doc · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-doc · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-headers · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-modules · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-modules · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-modules-extra · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-modules-extra · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-rt · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-rt · rocky 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RLSA-2022:1555 | Apr 26, 2022 |
| kernel-rt-core · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-rt-debug · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-rt-debug-core · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-rt-debug-devel · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-rt-debug-kvm · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-rt-debug-modules · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-rt-debug-modules-extra · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-rt-devel · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-rt-kvm · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-rt-modules · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-rt-modules-extra · RHEL 8 | 0:4.18.0-348.23.1.rt7.153.el8_5 | RHSA-2022:1555 | Apr 26, 2022 |
| kernel-tools · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-tools · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-tools-libs · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-tools-libs · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-tools-libs-devel · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-tools-libs-devel · almalinux 8 | 4.18.0-348.23.1.el8_5 | ALSA-2022:1550 | Apr 26, 2022 |
| kernel-tools-libs-devel · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| kernel-zfcpdump · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-zfcpdump-core · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-zfcpdump-devel · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-zfcpdump-modules · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kernel-zfcpdump-modules-extra · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| kpatch-patch-4_18_0-348 · RHEL 8 | 0:1-4.el8 | RHSA-2022:1535 | Apr 26, 2022 |
| kpatch-patch-4_18_0-348_12_2 · RHEL 8 | 0:1-2.el8_5 | RHSA-2022:1535 | Apr 26, 2022 |
| kpatch-patch-4_18_0-348_20_1 · RHEL 8 | 0:1-1.el8_5 | RHSA-2022:1535 | Apr 26, 2022 |
| kpatch-patch-4_18_0-348_2_1 · RHEL 8 | 0:1-3.el8_5 | RHSA-2022:1535 | Apr 26, 2022 |
| kpatch-patch-4_18_0-348_7_1 · RHEL 8 | 0:1-3.el8_5 | RHSA-2022:1535 | Apr 26, 2022 |
| linux · Debian 12.15 (bookworm) | 5.14.12-1 | DEBIAN-CVE-2021-4028 | Aug 24, 2022 |
| linux · Debian 13.5 (trixie) | 5.14.12-1 | DEBIAN-CVE-2021-4028 | Aug 24, 2022 |
| linux · Debian 14 | 5.14.12-1 | DEBIAN-CVE-2021-4028 | Aug 24, 2022 |
| perf · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| perf · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
| python3-perf · RHEL 8 | 0:4.18.0-348.23.1.el8_5 | RHSA-2022:1550 | Apr 26, 2022 |
| python3-perf · ol 8 | 0:4.18.0-348.23.1.el8_5 | ELSA-2022-1550 | Apr 27, 2022 |
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