Description
An incorrect sysctls validation vulnerability was found in CRI-O 1.18 and earlier. The sysctls from the list of "safe" sysctls specified for the cluster will be applied to the host if an attacker is able to create a pod with a hostIPC and hostNetwork kernel namespace.
References (2)
Core 2
Core References
Issue Tracking, Patch, Third Party Advisory x_refsource_misc
https://bugzilla.redhat.com/show_bug.cgi?id=2051730
Vendor Advisory x_refsource_misc
https://kubernetes.io/docs/tasks/administer-cluster/sysctl-cluster/#enabling-unsafe-sysctls
Scores
CVSS v3
4.2
EPSS
0.0019
EPSS Percentile
39.9%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:L
Details
CWE
CWE-732
Status
published
Products (3)
cri-o/cri-o
0 - 1.23.1Go
kubernetes/cri-o
< 1.18
redhat/openshift_container_platform
4.0
Published
Feb 09, 2022
Tracked Since
Feb 18, 2026