National Vulnerability Database (NVD) National Vulnerability Database (CVE-2011-4131)

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Last updated: Fri May 24 16:48:51 EDT 2013

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Vulnerability Summary for CVE-2011-4131

Original release date:05/17/2012

Last revised:02/14/2013

Source: US-CERT/NIST

Overview

The NFSv4 implementation in the Linux kernel before 3.2.2 does not properly handle bitmap sizes in GETACL replies, which allows remote NFS servers to cause a denial of service (OOPS) by sending an excessive number of bitmap words.

Impact

CVSS Severity (version 2.0):

CVSS v2 Base Score:4.6 (MEDIUM) (AV:A/AC:H/Au:N/C:N/I:N/A:C) (legend)

Impact Subscore: 6.9

Exploitability Subscore: 3.2

CVSS Version 2 Metrics:

Access Vector: Local network exploitable

Access Complexity: High

Authentication: Not required to exploit

Impact Type:Allows disruption of serviceUnknown

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External Source: CONFIRM

Name: https://github.com/torvalds/linux/commit/bf118a342f10dafe44b14451a1392c3254629a1f

Hyperlink:https://github.com/torvalds/linux/commit/bf118a342f10dafe44b14451a1392c3254629a1f

External Source: CONFIRM

Name: https://bugzilla.redhat.com/show_bug.cgi?id=747106

Hyperlink:https://bugzilla.redhat.com/show_bug.cgi?id=747106

External Source: MLIST

Name: [oss-security] 20111111 Re: CVE Request -- kernel: nfs4_getfacl decoding kernel oops

Hyperlink:http://www.openwall.com/lists/oss-security/2011/11/12/1

External Source: CONFIRM

Name: http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2

Hyperlink:http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2