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Last updated: 10/31/2014 12:30:33 PM

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Vulnerability Summary for CVE-2012-2375

Original release date: 06/13/2012
Last revised: 02/07/2013
Source: US-CERT/NIST

Overview

The __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the NFSv4 implementation in the Linux kernel before 3.3.2 uses an incorrect length variable during a copy operation, which allows remote NFS servers to cause a denial of service (OOPS) by sending an excessive number of bitmap words in an FATTR4_ACL reply. NOTE: this vulnerability exists because of an incomplete fix for CVE-2011-4131.

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 service

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External Source: MLIST
Name: [oss-security] 20120518 Re: CVE Request -- kernel: incomplete fix for CVE-2011-4131
External Source: CONFIRM
Name: https://bugzilla.redhat.com/show_bug.cgi?id=822869
External Source: CONFIRM
Name: http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.3.2
External Source: REDHAT
Name: RHSA-2012:1580
External Source: CONFIRM
Name: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=20e0fa98b751facf9a1101edaefbc19c82616a68
Type: Patch Information
External Source: CONFIRM
Name: https://github.com/torvalds/linux/commit/20e0fa98b751facf9a1101edaefbc19c82616a68
Type: Patch Information; Exploit

Technical Details

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