Vulnerability Intelligence Report
CVE-2021-4197
An unprivileged write to the file handler flaw in the Linux kernel's control groups and namespaces subsystem was found in the way users have access to some less privileged process that are controlled by cgroups and have higher privileged parent process. It is actually both for cgroup2 and cgroup1 versions of control groups. A local user could use this flaw to crash the system or escalate their privileges on the system.
No Active Exploit Signals
CVSS Base Score
7.8
HIGH
EPSS Probability:0.54%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-287 ↗CWE-287
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| linux | linux_kernel | all |
| oracle | communications_cloud_native_core_binding_support_function | 22.1.1, 22.1.3, 22.2.0 |
| debian | debian_linux | 10.0 |
| broadcom | brocade_fabric_operating_system_firmware | all |
| netapp | h300s_firmware | all |
| netapp | h300s | all |
| netapp | h500s_firmware | all |
| netapp | h500s | all |
| netapp | h700s_firmware | all |
| netapp | h700s | all |
| netapp | h410s_firmware | all |
| netapp | h410s | all |
| netapp | h410c_firmware | all |
| netapp | h410c | all |
Threat Intelligence Signals
EPSS Score
0.541%
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | Red Hat, Inc. · Vendor · USA |
| Reserved | 2022-01-03T00:00:00 |
| Published | 2022-03-23T19:46:43 |
| Last Updated | 2024-08-03T17:16:04 |
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