What is CVE-2011-2534?

CVE-2011-2534 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10. CVE-2011-2534 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-2534?

CVE-2011-2534 has a CVSS score of 7.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2011-2534?

No patch is currently available for CVE-2011-2534. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-2534 actively exploited?

CVE-2011-2534 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2011-2534

High

Buffer overflow in the clusterip_proc_write function in net/ipv4/netfilter/ipt_CLUSTERIP.c in the Linux kernel before 2.6.39 might allow local users to cause a denial of service or have unspecified other impact via a crafted write operation, related to string data that lacks a terminating '\0' character.

Package Linux Kernel

Published 2011-06-22

Last modified 2026-04-29

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

7.8

out of 10

High

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness type

CWE-120

CVE-2011-2534 is classified as CWE-120

See CWE-120 on MITRE CWE for full details on this weakness type.

References

The following references provide additional information about CVE-2011-2534 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Securityreason
http://securityreason.com/securityalert/8284

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

Release Notes Vendor Advisory
Securityfocus
http://www.securityfocus.com/bid/46921

Third Party Advisory VDB Entry
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=961ed183a9fd080cf306c659b8736007e44065a5
Patch
Kernel patch commit
http://marc.info/?l=netfilter&m=129978077509888&w=2
Patch
Kernel patch commit
http://marc.info/?l=netfilter-devel&m=130036157327564&w=2
Patch

7 patch commits total View all on NVD

Details

CVE ID CVE-2011-2534

Severity High

CVSS score 7.8 / 10

CVSS version 3.1

Published 2011-06-22

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2011-2534?

CVE-2011-2534 is a High severity Linux kernel vulnerability with a CVSS score of 7.8 out of 10 . CVE-2011-2534 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-2534?

CVE-2011-2534 has a CVSS score of 7.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2011-2534?

No patch is currently available for CVE-2011-2534. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-2534 actively exploited?

No — CVE-2011-2534 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.