CVE-2009-3623

HighCVSS 7.8/10Last modified Jun 16, 2026

Description

The lookup_cb_cred function in fs/nfsd/nfs4callback.c in the nfsd4 subsystem in the Linux kernel before 2.6.31.2 attempts to access a credentials cache even when a client specifies the AUTH_NULL authentication flavor, which allows remote attackers to cause a denial of service (NULL pointer dereference and system crash) via an NFSv4 mount request.

Metrics

CVSS 2.0 7.8/10AV:N/AC:L/Au:N/C:N/I:N/A:C

Weakness enumeration

CWE-287

Affected software

No affected versions have been published.

Timeline

Published: Oct 30, 2009
Last modified: Jun 16, 2026
NVD status: Modified

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