Public Date:
1031678: CVE-2013-4591 kernel: nfs: missing check for buffer length in __nfs4_get_acl_uncached

The MITRE CVE dictionary describes this issue as:

Buffer overflow in the __nfs4_get_acl_uncached function in fs/nfs/nfs4proc.c in the Linux kernel before 3.7.2 allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact via a getxattr system call for the system.nfs4_acl extended attribute of a pathname on an NFSv4 filesystem.

Find out more about CVE-2013-4591 from the MITRE CVE dictionary dictionary and NIST NVD.


This issue did not affect the version of Linux kernel as shipped with Red Hat Enterprise Linux 5 and Red Hat Enterprise MRG 2.

CVSS v2 metrics

NOTE: The following CVSS v2 metrics and score provided are preliminary and subject to review.

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
Red Hat Enterprise Linux version 6 (kernel) RHSA-2013:1645 2013-11-20
Red Hat Enterprise Linux Server EUS (v. 6.4) (kernel) RHSA-2014:0284 2014-03-11

Affected Packages State

Platform Package State
Red Hat Enterprise Linux 7 kernel Not affected
Red Hat Enterprise Linux 5 kernel Not affected