Auth bypass in Broadcom Brocade_fabric_operating_system_firmware
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 p…
Vulnerability class: Broken Authentication
EPSS: 0.005 (41.1th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (x_refsource_MISC)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_DEBIAN)
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-4197?
- CVE-2021-4197 is a high-severity vulnerability in Broadcom Brocade_fabric_operating_system_firmware, classified under Improper Authentication. CVSS score: 7.8/10. Published 2022-03-23.
- How severe is CVE-2021-4197?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-4197 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.