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Vulnerability Details : CVE-2011-4131

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.
Publish Date : 2012-05-17 Last Update Date : 2013-06-20
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- CVSS Scores & Vulnerability Types

CVSS Score
4.6
Confidentiality Impact None (There is no impact to the confidentiality of the system.)
Integrity Impact None (There is no impact to the integrity of the system)
Availability Impact Complete (There is a total shutdown of the affected resource. The attacker can render the resource completely unavailable.)
Access Complexity High (Specialized access conditions exist. It is hard to exploit and several special conditions must be satisfied to exploit)
Authentication Not required (Authentication is not required to exploit the vulnerability.)
Gained Access None
Vulnerability Type(s) Denial Of Service
CWE ID 189

- Additional Vendor Supplied Data

Vendor Impact CVSS Score CVSS Vector Report Date Publish Date
Redhat moderate
4.6
AV:A/AC:H/Au:N/C:N/I:N/A:C 2011-07-20 2011-11-05
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- Related OVAL Definitions

Title Definition Id Class Family
ELSA-2012-0862 -- Oracle Linux 6 kernel security, bug fix and enhancement update (moderate) oval:org.mitre.oval:def:27614 unix
ELSA-2012:0862: Red Hat Enterprise Linux 6 kernel security, bug fix and enhancement update (Moderate) oval:org.mitre.oval:def:23707 unix
RHSA-2012:0862: Red Hat Enterprise Linux 6 kernel security, bug fix and enhancement update (Moderate) oval:org.mitre.oval:def:21454 unix
RHSA-2012:0862: Red Hat Enterprise Linux 6 kernel security, bug fix and enhancement update (Moderate) oval:com.redhat.rhsa:def:20120862 unix
USN-1457-1 -- linux vulnerabilities oval:org.mitre.oval:def:17420 unix
OVAL (Open Vulnerability and Assessment Language) definitions define exactly what should be done to verify a vulnerability or a missing patch. Check out the OVAL definitions if you want to learn what you should do to verify a vulnerability.

- Products Affected By CVE-2011-4131

# Product Type Vendor Product Version Update Edition Language
1 OS Linux Linux Kernel 3.2 RC3 Version Details Vulnerabilities
2 OS Linux Linux Kernel 3.2 RC4 Version Details Vulnerabilities
3 OS Linux Linux Kernel 3.2 RC5 Version Details Vulnerabilities
4 OS Linux Linux Kernel 3.2 RC6 Version Details Vulnerabilities
5 OS Linux Linux Kernel 3.2 Version Details Vulnerabilities
6 OS Linux Linux Kernel 3.2 RC7 Version Details Vulnerabilities
7 OS Linux Linux Kernel 3.2 RC2 Version Details Vulnerabilities
8 OS Linux Linux Kernel 3.2.1 Version Details Vulnerabilities

- Number Of Affected Versions By Product

Vendor Product Vulnerable Versions
Linux Linux Kernel 8

- References For CVE-2011-4131

http://lists.fedoraproject.org/pipermail/package-announce/2012-May/081280.html
FEDORA FEDORA-2012-8359
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
SUSE openSUSE-SU-2013:0925
http://rhn.redhat.com/errata/RHSA-2012-0862.html
REDHAT RHSA-2012:0862
http://secunia.com/advisories/48898
SECUNIA 48898
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2 CONFIRM
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=bf118a342f10dafe44b14451a1392c3254629a1f CONFIRM
http://www.openwall.com/lists/oss-security/2011/11/12/1
MLIST [oss-security] 20111111 Re: CVE Request -- kernel: nfs4_getfacl decoding kernel oops
https://bugzilla.redhat.com/show_bug.cgi?id=747106 CONFIRM
https://github.com/torvalds/linux/commit/bf118a342f10dafe44b14451a1392c3254629a1f CONFIRM
http://rhn.redhat.com/errata/RHSA-2012-1541.html
REDHAT RHSA-2012:1541

- Metasploit Modules Related To CVE-2011-4131

There are not any metasploit modules related to this vulnerability (Please visit www.metasploit.com for more information)


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