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CVE-2011-3363

The setup_cifs_sb function in fs/cifs/connect.c in the Linux kernel before 2.6.39 does not...

6.5 MediumFix available

CVE-2011-3363 is a medium vulnerability (CVSS 6.5) in Linux Kernel, published May 24, 2012. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.83%, the 57th percentile. Fixed in kernel 0:2.6.32-131.21.1.el6.

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.

Attack profile

How easy it is to exploit

Attack vector
Adjacent network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.83%Down 0.2 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.5

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.

Record
CVE-2011-3363
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0
6.1 MediumAV:A/AC:L/Au:N/C:N/I:N/A:C
Weakness
CWE-20
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2011-3363
Updated
2026-11-02
EUVDEUVD-2011-3327 No score

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.

Record
EUVD-2011-3327
Updated
2026-11-03
GitHub AdvisoriesGHSA-3mjr-5fr9-2r8m 6.5

The setup_cifs_sb function in fs/cifs/connect.c in the Linux kernel before 2.6.39 does not...

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.

Record
GHSA-3mjr-5fr9-2r8m
CVSS 3.1
6.5 MediumCVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-20
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
kernel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-bootwrapper
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-debug
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-debug-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-debug-devel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-debuginfo-common-i686
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-debuginfo-common-ppc64
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-debuginfo-common-s390x
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-debuginfo-common-x86_64
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
Show 57 moreShow less
Affected packages
PackageAffectedFixed
kernel-devel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-doc
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-firmware
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-headers
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-kdump
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-kdump-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel-kdump-devel
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
perf
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
perf-debuginfo
Red Hat:enterprise_linux:6::server
 before 0:2.6.32-131.21.1.el6
0:2.6.32-131.21.1.el6
kernel
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-PAE
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-PAE-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-PAE-devel
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-debug
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-debug-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-debug-devel
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-debuginfo-common
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-devel
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-doc
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-headers
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-xen
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-xen-debuginfo
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-xen-devel
Red Hat:enterprise_linux:5::client
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-PAE
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-PAE-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-PAE-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-debug
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-debug-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-debug-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-debuginfo-common
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-doc
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-headers
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-kdump
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-kdump-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-kdump-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-xen
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-xen-debuginfo
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-xen-devel
Red Hat:enterprise_linux:5::server
 before 0:2.6.18-274.12.1.el5
0:2.6.18-274.12.1.el5
kernel-rt
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-debug
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-debug-debuginfo
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-debug-devel
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-debuginfo
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-debuginfo-common-x86_64
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-devel
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-doc
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-firmware
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-trace
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-trace-debuginfo
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-trace-devel
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-vanilla
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-vanilla-debuginfo
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt
kernel-rt-vanilla-devel
Red Hat:enterprise_mrg:2:server:el6
 before 0:2.6.33.9-rt31.79.el6rt
0:2.6.33.9-rt31.79.el6rt

History

History
WhenChangedSources
2026-11-03aliasesEUVD
2026-11-02createdCVE List, GitHub Advisories, NVD, OSV

References

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