CVE-2018-16871
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Linux Kernel
PublishedJul 30, 2019
First seenJul 30, 2019
Weakness typeCWE-476NULL pointer dereference
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| linux linux_kernel | 3.0 ≤ v ≤ 4.20 | — |
| redhat developer_tools | 1.0 | — |
| redhat mrg_realtime | 2.0 | — |
| redhat enterprise_linux | 7.0 | — |
| redhat enterprise_linux_desktop | 7.0 | — |
| redhat enterprise_linux_eus | 7.4 | — |
| redhat enterprise_linux_server | 7.0 | — |
| redhat enterprise_linux_server_aus | 7.4, 7.6 | — |
| redhat enterprise_linux_server_eus | 7.6 | — |
| redhat enterprise_linux_server_tus | 7.4, 7.6 | — |
| redhat enterprise_linux_workstation | 7.0 | — |
| netapp cloud_backup | No range specified | — |
| netapp h410c_firmware | No range specified | — |
| netapp h300s_firmware | No range specified | — |
| netapp h500s_firmware | No range specified | — |
| netapp h700s_firmware | No range specified | — |
| netapp h300e_firmware | No range specified | — |
| netapp h500e_firmware | No range specified | — |
| netapp h700e_firmware | No range specified | — |
| netapp h410s_firmware | No range specified | — |
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