CVE-2011-3191

Name: CVE-2011-3191
Creator: NVD / NIST
Published: 2012-05-24T23:55:02.26+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

HIGHCVSS 8.8/10EPSS 1.09%

Last modified Jun 16, 2026

CVE-2011-3191 is a high-severity vulnerability rated 8.8/10 on the CVSS scale. 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.. EPSS estimates a 1.09% chance of exploitation in the next 30 days.

Description

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.

Metrics

CVSS 3.1

8.8/10

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

EPSS Probability

1.09%

61.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-119

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 3.0.5
Redhat	Enterprise Linux	4.0

References

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9438fabb73eb48055b58b89fc51e0bc4db22fabd
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1Mailing List, Patch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2011/08/24/2Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=732869Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/9438fabb73eb48055b58b89fc51e0bc4db22fabdPatch, Third Party Advisory
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=9438fabb73eb48055b58b89fc51e0bc4db22fabd
http://www.kernel.org/pub/linux/kernel/v3.x/ChangeLog-3.1Mailing List, Patch, Vendor Advisory
http://www.openwall.com/lists/oss-security/2011/08/24/2Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=732869Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/9438fabb73eb48055b58b89fc51e0bc4db22fabdPatch, Third Party Advisory

Timeline

Published: May 24, 2012
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2011-3191?

How severe is CVE-2011-3191?

CVE-2011-3191 has a CVSS score of 8.8/10 (HIGH severity). The EPSS model estimates a 1.09% probability of exploitation in the next 30 days.

How do I fix CVE-2011-3191?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2011-3191?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST