What is CVE-2011-3191?

CVE-2011-3191 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10, classified as a Buffer Overflow flaw (CWE-119). CVE-2011-3191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2011-3191?

CVE-2011-3191 has a CVSS score of 8.8 out of 10, rated High severity. The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Is there a patch available for CVE-2011-3191?

No patch is currently available for CVE-2011-3191. Monitor the NIST NVD and your Linux distribution's security advisories for updates.

Is CVE-2011-3191 actively exploited?

CVE-2011-3191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/119.html

CVE-2011-3191

High

Integer signedness error in the CIFSFindNext function in fs/cifs/cifssmb.c in the Linux kernel before 3.1 allows remote CIFS servers to cause a denial of service (memory corruption) or possibly have unspecified other impact via a large length value in a response to a read request for a directory.

Package Linux Kernel

Published 2012-05-24

Last modified 2026-04-29

CVSS version 3.1

Patch available

Awaiting data

CVSS 3.1 score

8.8

out of 10

High

Attack Vector

Adjacent

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Vector string

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

Weakness type

CWE-119

CVE-2011-3191 is a Buffer Overflow vulnerability

What is Buffer Overflow?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. Learn more on MITRE CWE

References

The following references provide additional information about CVE-2011-3191 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Kernel patch commit
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9438fabb73eb48055b58b89fc51e0bc4db22fabd
Patch
Kernel patch commit
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1
Patch
Kernel patch commit
http://www.openwall.com/lists/oss-security/2011/08/24/2
Patch

5 patch commits total View all on NVD

Details

CVE ID CVE-2011-3191

Severity High

CVSS score 8.8 / 10

CVSS version 3.1

Published 2012-05-24

Modified 2026-04-29

KEV No

Patch Awaiting data

Package linux

Frequently asked questions

What is CVE-2011-3191?

CVE-2011-3191 is a High severity Linux kernel vulnerability with a CVSS score of 8.8 out of 10 , classified as a Buffer Overflow flaw (CWE-119) . CVE-2011-3191 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2011-3191?

CVE-2011-3191 has a CVSS score of 8.8 out of 10, rated High severity (CVSS 3.1). The vector string is CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
Is there a patch available for CVE-2011-3191?

No patch is currently available for CVE-2011-3191. Monitor the NIST NVD and your Linux distribution's security advisories for updates.
Is CVE-2011-3191 actively exploited?

No — CVE-2011-3191 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.
What is Buffer Overflow (CWE-119)?

The product performs operations on a memory buffer but reads or writes outside its intended boundaries. View CWE-119 on MITRE CWE →