What is CVE-2011-1581?

CVE-2011-1581 is a High severity Linux kernel vulnerability with a CVSS score of 9.0 out of 10, classified as a Improper Input Validation flaw (CWE-20). CVE-2011-1581 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-1581?

CVE-2011-1581 has a CVSS score of 9.0 out of 10, rated High severity. The vector string is AV:N/AC:L/Au:N/C:P/I:P/A:C.

Is there a patch available for CVE-2011-1581?

No patch is currently available for CVE-2011-1581. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-1581 actively exploited?

CVE-2011-1581 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2011-1581

High

The bond_select_queue function in drivers/net/bonding/bond_main.c in the Linux kernel before 2.6.39, when a network device with a large number of receive queues is installed but the default tx_queues setting is used, does not properly restrict queue indexes, which allows remote attackers to cause a denial of service (BUG and system crash) or possibly have unspecified other impact by sending network traffic.

Package Linux Kernel

Published 2011-05-26

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

9.0

out of 10

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

User Interaction

Scope

Confidentiality

Low

Integrity

Availability

Vector string

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

Weakness type

CWE-20

CVE-2011-1581 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-2011-1581 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Securitytracker
http://securitytracker.com/id?1025558

Third Party Advisory VDB Entry
Kernel.org
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39

Release Notes Vendor Advisory
Red Hat
https://bugzilla.redhat.com/show_bug.cgi?id=696029

Issue Tracking Third Party Advisory
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=fd0e435b0fe85622f167b84432552885a4856ac8
Patch
Kernel patch commit
http://openwall.com/lists/oss-security/2011/04/13/16
Patch
Kernel patch commit
http://openwall.com/lists/oss-security/2011/04/13/4
Patch

Details

CVE ID CVE-2011-1581

Severity High

CVSS score 9.0 / 10

CVSS version 2.0

Published 2011-05-26

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2011-1581?

CVE-2011-1581 is a High severity Linux kernel vulnerability with a CVSS score of 9.0 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2011-1581 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-1581?

CVE-2011-1581 has a CVSS score of 9.0 out of 10, rated High severity (CVSS 2.0). The vector string is AV:N/AC:L/Au:N/C:P/I:P/A:C.
Is there a patch available for CVE-2011-1581?

No patch is currently available for CVE-2011-1581. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-1581 actively exploited?

No — CVE-2011-1581 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 →