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CVE-2018-16884

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CVE-2018-16884

Published: Dec 18, 2018

Modified: Aug 5, 2024

PUBLISHED

CVSS v3.0

6.5

MEDIUM

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.

VendorProductVersions

[UNKNOWN]

kernel:

affected
n/a

Weaknesses (CWE)

CWE-416

CVSS v3.0 Details

CVSS v3.0 Vector

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

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Changed

Confidentiality

None

Integrity

Low

Availability

High

References

106253
vdb-entry
x_refsource_BID
USN-3932-1
vendor-advisory
x_refsource_UBUNTU
USN-3932-2
vendor-advisory
x_refsource_UBUNTU
USN-3981-1
vendor-advisory
x_refsource_UBUNTU
USN-3980-1
vendor-advisory
x_refsource_UBUNTU
USN-3980-2
vendor-advisory
x_refsource_UBUNTU
USN-3981-2
vendor-advisory
x_refsource_UBUNTU
RHSA-2019:1873
vendor-advisory
x_refsource_REDHAT
RHSA-2019:1891
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2696
vendor-advisory
x_refsource_REDHAT
RHSA-2019:2730
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3309
vendor-advisory
x_refsource_REDHAT
RHSA-2019:3517
vendor-advisory
x_refsource_REDHAT
RHSA-2020:0204
vendor-advisory
x_refsource_REDHAT

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