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.
| Version | Score | Severity | Vector String |
|---|---|---|---|
| 3.0 | 6.5 | Medium | CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H |
| Product | Vendor | Version |
|---|---|---|
| kernel: | [UNKNOWN] | SD626 |