CVE-2018-16871

Impact:
Moderate
Public Date:
2019-06-03
CWE:
CWE-476
Bugzilla:
1655162: CVE-2018-16871 kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence
A flaw was found in the Linux kernel's NFS implementation. An attacker, who is able to mount an exported NFS filesystem, is able to trigger a null pointer dereference by using an invalid NFS sequence. This can panic the machine and deny access to the NFS server. Any outstanding disk writes to the NFS server will be lost.

Find out more about CVE-2018-16871 from the MITRE CVE dictionary dictionary and NIST NVD.

CVSS v3 metrics

CVSS3 Base Score 7.5
CVSS3 Base Metrics CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Impact None
Availability Impact High

Red Hat Security Errata

Platform Errata Release Date
Red Hat Enterprise Linux for Real Time for NFV (v. 7) (kernel-rt) RHSA-2019:1891 2019-07-29
Red Hat Enterprise Linux 7 (kernel) RHSA-2019:1873 2019-07-29

Affected Packages State

Platform Package State
Red Hat Enterprise MRG 2 kernel-rt Affected
Red Hat Enterprise Linux 8 kernel Affected
Red Hat Enterprise Linux 8 kernel-rt Affected
Red Hat Enterprise Linux 7 kernel-alt Affected
Red Hat Enterprise Linux 6 kernel Not affected
Red Hat Enterprise Linux 5 kernel Not affected
Unless explicitly stated as not affected, all previous versions of packages in any minor update stream of a product listed here should be assumed vulnerable, although may not have been subject to full analysis.

Acknowledgements

This issue was discovered by Jasu Liedes (Synopsys SIG) and Hangbin Liu (Red Hat).
Last Modified