What is CVE-2011-4132?

CVE-2011-4132 is a Low severity Linux kernel vulnerability with a CVSS score of 2.1 out of 10, classified as a Improper Input Validation flaw (CWE-20). CVE-2011-4132 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-4132?

CVE-2011-4132 has a CVSS score of 2.1 out of 10, rated Low severity. The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:P.

Is there a patch available for CVE-2011-4132?

No patch is currently available for CVE-2011-4132. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-4132 actively exploited?

CVE-2011-4132 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2011-4132

Low

The cleanup_journal_tail function in the Journaling Block Device (JBD) functionality in the Linux kernel 2.6 allows local users to cause a denial of service (assertion error and kernel oops) via an ext3 or ext4 image with an "invalid log first block value."

Package Linux Kernel

Published 2012-01-27

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

2.1

out of 10

Low

Attack Vector

Local

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

None

Availability

Vector string

AV:L/AC:L/Au:N/C:N/I:N/A:P

Weakness type

CWE-20

CVE-2011-4132 is a Improper Input Validation vulnerability

What is Improper Input Validation?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2011-4132 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Lists
http://lists.opensuse.org/opensuse-security-announce/2012-04/msg00021.html
Lists
http://lists.opensuse.org/opensuse-security-announce/2015-04/msg00020.html
Secunia
http://secunia.com/advisories/48898
Securitytracker
http://securitytracker.com/id?1026325
Openwall
http://www.openwall.com/lists/oss-security/2011/11/11/6
Openwall
http://www.openwall.com/lists/oss-security/2011/11/13/4
Securityfocus
http://www.securityfocus.com/bid/50663
Xorl
http://xorl.wordpress.com/2011/12/08/cve-2011-4132-linux-kernel-jbdjbd2-local-dos/

Exploit
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=753341
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=8762202dd0d6e46854f786bdb6fb3780a1625efe
Patch

Details

CVE ID CVE-2011-4132

Severity Low

CVSS score 2.1 / 10

CVSS version 2.0

Published 2012-01-27

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2011-4132?

CVE-2011-4132 is a Low severity Linux kernel vulnerability with a CVSS score of 2.1 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2011-4132 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-4132?

CVE-2011-4132 has a CVSS score of 2.1 out of 10, rated Low severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:P.
Is there a patch available for CVE-2011-4132?

No patch is currently available for CVE-2011-4132. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-4132 actively exploited?

No — CVE-2011-4132 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Improper Input Validation (CWE-20)?

The product receives input but does not validate it correctly, allowing attackers to craft inputs that cause unexpected behavior. View CWE-20 on MITRE CWE →