What is CVE-2011-2518?

CVE-2011-2518 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.9 out of 10, classified as a Improper Input Validation flaw (CWE-20). CVE-2011-2518 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-2518?

CVE-2011-2518 has a CVSS score of 4.9 out of 10, rated Medium severity. The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:C.

Is there a patch available for CVE-2011-2518?

No patch is currently available for CVE-2011-2518. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-2518 actively exploited?

CVE-2011-2518 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2011-2518

Medium

The tomoyo_mount_acl function in security/tomoyo/mount.c in the Linux kernel before 2.6.39.2 calls the kern_path function with arguments taken directly from a mount system call, which allows local users to cause a denial of service (OOPS) or possibly have unspecified other impact via a NULL value for the device name.

Package Linux Kernel

Published 2012-05-24

Last modified 2026-04-29

CVSS version 2.0

Patch available

Awaiting data

CVSS 2.0 score

4.9

out of 10

Medium

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:C

Weakness type

CWE-20

CVE-2011-2518 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-2011-2518 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Ftp
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39.2

Broken Link
Marc
http://marc.info/?l=bugtraq&m=139447903326211&w=2

Third Party Advisory
Openwall
http://www.openwall.com/lists/oss-security/2011/07/01/5

Mailing List Third Party Advisory
Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=4e78c724d47e2342aa8fde61f6b8536f662f795f
Patch
Kernel patch commit
https://github.com/torvalds/linux/commit/4e78c724d47e2342aa8fde61f6b8536f662f795f
Patch

Details

CVE ID CVE-2011-2518

Severity Medium

CVSS score 4.9 / 10

CVSS version 2.0

Published 2012-05-24

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2011-2518?

CVE-2011-2518 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.9 out of 10 , classified as an Improper Input Validation flaw (CWE-20) . CVE-2011-2518 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-2518?

CVE-2011-2518 has a CVSS score of 4.9 out of 10, rated Medium severity (CVSS 2.0). The vector string is AV:L/AC:L/Au:N/C:N/I:N/A:C.
Is there a patch available for CVE-2011-2518?

No patch is currently available for CVE-2011-2518. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-2518 actively exploited?

No — CVE-2011-2518 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 →