Public Date:
491572: CVE-2009-1072 kernel: nfsd should drop CAP_MKNOD for non-root

The MITRE CVE dictionary describes this issue as:

nfsd in the Linux kernel before does not drop the CAP_MKNOD capability before handling a user request in a thread, which allows local users to create device nodes, as demonstrated on a filesystem that has been exported with the root_squash option.

Find out more about CVE-2009-1072 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue has been rated as having moderate security impact. It was addressed in Red Hat Enterprise Linux 4, 5, and Red Hat Enterprise MRG, via , , and .

This issue is not planned to be fixed in Red Hat Enterprise Linux 2.1 and 3, due to these products being in Production 3 of their maintenance life-cycles, where only qualified security errata of important or critical impact are addressed.

CVSS v2 metrics

Base Score 6.2
Base Metrics AV:L/AC:H/Au:N/C:C/I:C/A:C
Access Vector Local
Access Complexity High
Authentication None
Confidentiality Impact Complete
Integrity Impact Complete
Availability Impact Complete

Find out more about Red Hat support for the Common Vulnerability Scoring System (CVSS).

Red Hat Security Errata

Platform Errata Release Date
MRG Grid for RHEL 5 Server (kernel-rt) RHSA-2009:1081 2009-06-03
Red Hat Enterprise Linux 4 (kernel) RHSA-2009:1132 2009-06-30
Red Hat Enterprise Linux 5 (kernel) RHSA-2009:1106 2009-06-16
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