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
No CVSS v4.0
No CVSS v3.1
No CVSS v3.0
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Complete
This CVE is not in the KEV list.
Key SSVC decision points have not yet been added.
Affected Vendors & Products
Vendors | Products |
---|---|
Linux |
|
Configuration 1 [-]
|
No data.
References
History
Wed, 28 May 2025 14:45:00 +0000
Type | Values Removed | Values Added |
---|---|---|
References |
Thu, 22 May 2025 04:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
References |

Status: PUBLISHED
Assigner: redhat
Published: 2009-10-30T20:05:00
Updated: 2024-08-07T06:38:28.461Z
Reserved: 2009-10-09T00:00:00
Link: CVE-2009-3623

No data.

Status : Deferred
Published: 2009-10-30T20:30:00.343
Modified: 2025-04-09T00:30:58.490
Link: CVE-2009-3623
