This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page. View CVE-2017-8797 →

DEBIAN-CVE-2017-8797

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 LAYOUTGE...

Original description

The description as published by the source.

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.

Source: OSV.dev (Open Source Vulnerabilities) OSV

Affected packages

Debian:12 linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.30-1"}]}]

Debian:13 linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.30-1"}]}]

Debian:14 linux

[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"4.9.30-1"}]}]

References

advisory security-tracker.debian.org