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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
nfsd in the Linux kernel before 2.6.28.9 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.
Source: MITRE View Analysis Description
Source: MITRE
Base Score: 4.9 MEDIUM Vector: (AV:L/AC:L/Au:N/C:N/I:C/A:N) (V2 legend) Impact Subscore: 6.9 Exploitability Subscore: 3.9
Access Vector (AV): Local Access Complexity (AC): Low Authentication (AU): None Confidentiality (C): None Integrity (I): Complete Availability (A): None Additional Information: Allows unauthorized modification
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 https://rhn.redhat.com/errata/RHSA-2009-1132.html , https://rhn.redhat.com/errata/RHSA-2009-1106.html , and https://rhn.redhat.com/errata/RHSA-2009-1081.html . 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. For further information about Errata Support Policy, visit: http://www.redhat.com/security/updates/errata/ .
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Vulnerability Type (View All)
http://www.securityfocus.com/archive/1/507985/100/0/threaded [No Types Assigned]
http://www.securityfocus.com/archive/1/archive/1/507985/100/0/threaded [No Types Assigned]
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10314 [No Types Assigned]
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8382 [No Types Assigned]
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10314 [No Types Assigned]
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:8382 [No Types Assigned]
https://exchange.xforce.ibmcloud.com/vulnerabilities/49356 [No Types Assigned]
http://xforce.iss.net/xforce/xfdb/49356 [No Types Assigned]