Security Advisory
CVE-2018-16884
CVE vulnerability detail — eXtreme Datacenter Security Operations
Description
A flaw was found in the Linux kernels NFS41+ subsystem. NFS41+ shares mounted in different network namespaces at the same time can make bc_svc_process() use wrong back-channel IDs and cause a use-after-free vulnerability. Thus a malicious container user can cause a host kernel memory corruption and a system panic. Due to the nature of the flaw, privilege escalation cannot be fully ruled out.