CVE-2011-3363

Name: CVE-2011-3363
Creator: NVD / NIST
Published: 2012-05-24T23:55:02.387+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 6.5/10EPSS 0.84%

Last modified Jun 16, 2026

CVE-2011-3363 is a medium-severity vulnerability rated 6.5/10 on the CVSS scale. The setup_cifs_sb function in fs/cifs/connect.c in the Linux kernel before 2.6.39 does not properly handle DFS referrals, which allows remote CIFS servers to cause a denial of service (system crash) by placing a referral at the root of a share.. EPSS estimates a 0.84% chance of exploitation in the next 30 days.

Description

The setup_cifs_sb function in fs/cifs/connect.c in the Linux kernel before 2.6.39 does not properly handle DFS referrals, which allows remote CIFS servers to cause a denial of service (system crash) by placing a referral at the root of a share.

Metrics

CVSS 3.1

6.5/10

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

EPSS Probability

0.84%

53.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-20

Affected Software

Vendor	Product	Versions
Linux	Linux Kernel	< 2.6.39
Redhat	Enterprise Linux	4.0

References

http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Broken Link
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=70945643722ffeac779d2529a348f99567fa5c33
http://www.openwall.com/lists/oss-security/2011/09/14/12Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=738291Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/70945643722ffeac779d2529a348f99567fa5c33Patch, Third Party Advisory
http://ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39Broken Link
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=70945643722ffeac779d2529a348f99567fa5c33
http://www.openwall.com/lists/oss-security/2011/09/14/12Mailing List, Patch, Third Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=738291Issue Tracking, Patch, Third Party Advisory
https://github.com/torvalds/linux/commit/70945643722ffeac779d2529a348f99567fa5c33Patch, Third Party Advisory

Timeline

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

Frequently Asked Questions

What is CVE-2011-3363?

How severe is CVE-2011-3363?

CVE-2011-3363 has a CVSS score of 6.5/10 (MEDIUM severity). The EPSS model estimates a 0.84% probability of exploitation in the next 30 days.

How do I fix CVE-2011-3363?

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-2011-3363?

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

Scan your code now

Source: NVD / NIST