NetSight
high8.0

CVE-2018-16884

A flaw was found in the Linux kernel's NFS41+ subsystem.

Impact

A flaw was found in the Linux kernel's 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.

Affected products

VendorProductAffected versions
LinuxLinux Kernel
from 3.7 before 3.16.65
from 3.17 before 3.18.133
from 3.19 before 4.4.171
from 4.5 before 4.9.151
from 4.10 before 4.14.94
from 4.15 before 4.19.16
RedhatEnterprise Linux
Version 7.0
RedhatEnterprise Mrg
Version 2.0
DebianDebian Linux
Version 8.0
CanonicalUbuntu Linux
Versions 14.04, 16.04

Weakness classification

References