CVE-2018-16884

CVE Details

Release Date:	2018-12-18
Impact:	None	What is this?

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.

See more information about CVE-2018-16884 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v3 metrics

Base Score:	8.0
Vector String:	CVSS:3.0/AV:A/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Version:	3.0
Attack Vector:	Adjacent_Network
Attack Complexity:	Low
Privileges Required:	Low
User Interaction:	None
Scope:	Unchanged
Confidentiality Impact:	High
Integrity Impact:	High
Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 6 (dtrace-modules-3.8.13-118.49.1.el6uek)	ELSA-2020-5841	2020-09-10
Oracle Linux version 6 (kernel-uek)	ELSA-2020-5841	2020-09-10
Oracle Linux version 6 (kernel-uek)	ELSA-2020-5866	2020-10-06
Oracle Linux version 7 (dtrace-modules-3.8.13-118.49.1.el7uek)	ELSA-2020-5841	2020-09-10
Oracle Linux version 7 (kernel)	ELSA-2019-1873	2019-07-30
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5841	2020-09-10
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5845	2020-09-11
Oracle Linux version 7 (kernel-uek)	ELSA-2020-5866	2020-10-06
Oracle Linux version 8 (kernel)	ELSA-2019-3517	2019-11-14
Oracle VM version 3.4 (kernel-uek)	OVMSA-2020-0044	2020-10-09