CVE Database›Document archive›CVE-2018-16884

CVE-2018-16884

kernel: nfs: use-after-free in svc_process_common()

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Severity

Important

Red Hat Product Security

6.5

CVSS 3.0

Review impact separately from score.

Published · November 27, 2018

Updated · June 28, 2026

Description

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.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.0 · 6.5
CVSS:3.0/AV:A/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H

CWE-416 · Use After Free