What is CVE-2011-4127?

CVE-2011-4127 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.6 out of 10, classified as a Permissions, Privileges and Access Control flaw (CWE-264). CVE-2011-4127 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-4127?

CVE-2011-4127 has a CVSS score of 4.6 out of 10, rated Medium severity. The vector string is AV:L/AC:L/Au:N/C:P/I:P/A:P.

Is there a patch available for CVE-2011-4127?

No patch is currently available for CVE-2011-4127. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-4127 actively exploited?

CVE-2011-4127 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-2011-4127

Medium

The Linux kernel before 3.2.2 does not properly restrict SG_IO ioctl calls, which allows local users to bypass intended restrictions on disk read and write operations by sending a SCSI command to (1) a partition block device or (2) an LVM volume.

Package Linux Kernel

Published 2012-07-03

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

Local

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

Availability

Vector string

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

Weakness type

CWE-264

CVE-2011-4127 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-2011-4127 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
Kernel.org
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.2.2
Openwall
http://www.openwall.com/lists/oss-security/2011/12/22/5
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=752375
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=0bfc96cb77224736dfa35c3c555d37b3646ef35e
Patch
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=ec8013beddd717d1740cfefb1a9b900deef85462
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/0bfc96cb77224736dfa35c3c555d37b3646ef35e
Patch

4 patch commits total View all on NVD

Details

CVE ID CVE-2011-4127

Severity Medium

CVSS score 4.6 / 10

CVSS version 2.0

Published 2012-07-03

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2011-4127?

CVE-2011-4127 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.6 out of 10 , classified as a Permissions, Privileges and Access Control flaw (CWE-264) . CVE-2011-4127 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-4127?

CVE-2011-4127 has a CVSS score of 4.6 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:P/I:P/A:P.
Is there a patch available for CVE-2011-4127?

No patch is currently available for CVE-2011-4127. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-4127 actively exploited?

No — CVE-2011-4127 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 →