The NFSv4 server in the Linux kernel before 4.11.3 does not properly validate the layout type when processing the NFSv4 pNFS GETDEVICEINFO or LAYOUTGET operand in a UDP packet from a remote attacker. This type value is uninitialized upon encountering certain error conditions. This value is used as an array index for dereferencing, which leads to an OOPS and eventually a DoS of knfsd and a soft-lockup of the whole system.
History

No history.

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2017-07-02T17:00:00

Updated: 2024-08-05T16:48:22.015Z

Reserved: 2017-05-05T00:00:00

Link: CVE-2017-8797

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Analyzed

Published: 2017-07-02T17:29:00.177

Modified: 2023-02-03T02:02:19.697

Link: CVE-2017-8797

cve-icon Redhat

Severity : Important

Publid Date: 2017-06-27T00:00:00Z

Links: CVE-2017-8797 - Bugzilla