What is CVE-2011-4131?

CVE-2011-4131 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.6 out of 10. CVE-2011-4131 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-4131?

CVE-2011-4131 has a CVSS score of 4.6 out of 10, rated Medium severity. The vector string is AV:A/AC:H/Au:N/C:N/I:N/A:C.

Is there a patch available for CVE-2011-4131?

No patch is currently available for CVE-2011-4131. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-4131 actively exploited?

CVE-2011-4131 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2011-4131

Medium

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.

Package Linux Kernel

Published 2012-05-17

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.6

out of 10

Medium

Attack Vector

Adjacent

Attack Complexity

High

Privileges Required

User Interaction

Scope

Confidentiality

High

Integrity

None

Availability

Vector string

AV:A/AC:H/Au:N/C:N/I:N/A:C

Weakness type

CWE-189

CVE-2011-4131 is classified as CWE-189

See CWE-189 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2011-4131 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
http://lists.fedoraproject.org/pipermail/package-announce/2012-May/081280.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2013-06/msg00005.html
Red Hat
http://rhn.redhat.com/errata/RHSA-2012-0862.html
Red Hat
http://rhn.redhat.com/errata/RHSA-2012-1541.html
Secunia
http://secunia.com/advisories/48898
Kernel.org
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
Openwall
http://www.openwall.com/lists/oss-security/2011/11/12/1
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=747106
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=bf118a342f10dafe44b14451a1392c3254629a1f
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/bf118a342f10dafe44b14451a1392c3254629a1f
Patch

Details

CVE ID CVE-2011-4131

Severity Medium

CVSS score 4.6 / 10

CVSS version 2.0

Published 2012-05-17

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2011-4131?

CVE-2011-4131 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.6 out of 10 . CVE-2011-4131 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-4131?

CVE-2011-4131 has a CVSS score of 4.6 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:A/AC:H/Au:N/C:N/I:N/A:C.
Is there a patch available for CVE-2011-4131?

No patch is currently available for CVE-2011-4131. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-4131 actively exploited?

No — CVE-2011-4131 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.