CVE-2018-16871: Linux Kernel
High severity, CVSS 7.5. EPSS: 2.7% chance of exploitation in the next 30 days.
A flaw was found in the Linux kernel's NFS implementation, all versions 3.x and all versions 4.x up to 4.20. 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.
Affected products
- Linux Linux Kernel: from 3.0, up to and including 4.20
- Netapp Cloud Backup: affected versions not specified
- Netapp h300e Firmware: affected versions not specified
- Netapp h300s Firmware: affected versions not specified
- Netapp h410c Firmware: affected versions not specified
- Netapp h410s Firmware: affected versions not specified
- Netapp h500e Firmware: affected versions not specified
- Netapp h500s Firmware: affected versions not specified
- Netapp h700e Firmware: affected versions not specified
- Netapp h700s Firmware: affected versions not specified
- Red Hat Developer Tools: version 1.0 only
- Red Hat Enterprise Linux: version 7.0 only
- Red Hat Enterprise Linux Desktop: version 7.0 only
- Red Hat Enterprise Linux Eus: version 7.4 only
- Red Hat Enterprise Linux Server: version 7.0 only
- Red Hat Enterprise Linux Server Aus: version 7.4 only; version 7.6 only
- Red Hat Enterprise Linux Server Eus: version 7.6 only
- Red Hat Enterprise Linux Server Tus: version 7.4 only; version 7.6 only
- Red Hat Enterprise Linux Workstation: version 7.0 only
- Red Hat Mrg Realtime: version 2.0 only
Published 2019-07-30. Last modified 2026-06-17.