CVE-2022-0185 - Red Hat OpenShift Container Platform 4.

Solution In Progress - Updated -

Issue

A heap-based buffer overflow flaw was found in the way the legacy_parse_param function in the Filesystem Context functionality of the Linux kernel verified the supplied parameters length. An unprivileged (in case of unprivileged user namespaces enabled, otherwise needs namespaced CAP_SYS_ADMIN privilege) local user able to open a filesystem that does not support the Filesystem Context API (and thus fallbacks to legacy handling) could use this flaw to escalate their privileges on the system.

Environment

  • Red Hat OpenShift Container Platform 4 [RHCOP]

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