What is CVE-2011-2203?

CVE-2011-2203 is a Low severity Linux kernel vulnerability with a CVSS score of 2.1 out of 10, classified as a Permissions, Privileges and Access Control flaw (CWE-264). CVE-2011-2203 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-2203?

CVE-2011-2203 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-2011-2203?

No patch is currently available for CVE-2011-2203. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-2203 actively exploited?

CVE-2011-2203 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Permissions, Privileges and Access Control (CWE-264)?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/264.html

CVE-2011-2203

Low

The hfs_find_init function in the Linux kernel 2.6 allows local users to cause a denial of service (NULL pointer dereference and Oops) by mounting an HFS file system with a malformed MDB extent record.

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-264

CVE-2011-2203 is a Permissions, Privileges and Access Control vulnerability

What is Permissions, Privileges and Access Control?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2011-2203 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Secunia
http://secunia.com/advisories/47754
Openwall
http://www.openwall.com/lists/oss-security/2011/06/13/16
Securityfocus
http://www.securityfocus.com/bid/48236
Ubuntu Security
http://www.ubuntu.com/usn/USN-1324-1
Ubuntu Security
http://www.ubuntu.com/usn/USN-1328-1
Ubuntu Security
http://www.ubuntu.com/usn/USN-1344-1
Lkml
https://lkml.org/lkml/2011/6/8/154

Exploit
Kernel patch commit
https://bugzilla.redhat.com/show_bug.cgi?id=712774
Patch

Details

CVE ID CVE-2011-2203

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-2011-2203?

CVE-2011-2203 is a Low severity Linux kernel vulnerability with a CVSS score of 2.1 out of 10 , classified as a Permissions, Privileges and Access Control flaw (CWE-264) . CVE-2011-2203 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-2203?

CVE-2011-2203 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-2011-2203?

No patch is currently available for CVE-2011-2203. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-2203 actively exploited?

No — CVE-2011-2203 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Permissions, Privileges and Access Control (CWE-264)?

Weaknesses in this category are related to the management of permissions, privileges, and access controls. View CWE-264 on MITRE CWE →