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 Medium
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 58th percentile. No source names a fixed version.
- Severity
- 6.5 MediumCVSS 3.1, NVD
- Exploit chance
- 0.83%EPSS, 58th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
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.
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
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
kernelRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-bootwrapperRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-debugRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-debug-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-debug-develRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-debuginfo-common-i686Red Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-debuginfo-common-ppc64Red Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-debuginfo-common-s390xRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-debuginfo-common-x86_64Red Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
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| Package | Affected | Fixed |
|---|---|---|
kernel-develRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-docRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-firmwareRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-headersRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-kdumpRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-kdump-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernel-kdump-develRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
perfRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
perf-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 12 CVEs | before 0:2.6.32-131.21.1.el6 | 0:2.6.32-131.21.1.el6 |
kernelRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-PAERed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-PAE-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-PAE-develRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-debugRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-debug-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-debug-develRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-debuginfo-commonRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-develRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-docRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-headersRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-xenRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-xen-debuginfoRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-xen-develRed Hat:enterprise_linux:5::client From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernelRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-PAERed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-PAE-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-PAE-develRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-debugRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-debug-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-debug-develRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-debuginfo-commonRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-develRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-docRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-headersRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-kdumpRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-kdump-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-kdump-develRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-xenRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-xen-debuginfoRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-xen-develRed Hat:enterprise_linux:5::server From an advisory covering 6 CVEs | before 0:2.6.18-274.12.1.el5 | 0:2.6.18-274.12.1.el5 |
kernel-rtRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-debugRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-debug-debuginfoRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-debug-develRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-debuginfoRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-debuginfo-common-x86_64Red Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-develRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-docRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-firmwareRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-traceRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-trace-debuginfoRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-trace-develRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-vanillaRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-vanilla-debuginfoRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
kernel-rt-vanilla-develRed Hat:enterprise_mrg:2:server:el6 From an advisory covering 14 CVEs | before 0:2.6.33.9-rt31.79.el6rt | 0:2.6.33.9-rt31.79.el6rt |
What each source reports
NVD Score used
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 Medium
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - CVSS 2.0
- 6.1 Medium
AV:A/AC:L/Au:N/C:N/I:N/A:C - Weakness
- CWE-20
- Updated
- 2026-11-02
CVE ListNo 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-2011-3327No 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
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 Medium
CVSS: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
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
References
openwall.com/lists/oss-security/2011/09/14/12
github.com/torvalds/linux/commit/70945643722ffeac779d2529a348f99567fa5c33
bugzilla.redhat.com/show_bug.cgi?id=738291
ftp.osuosl.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
git.kernel.org?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=70945643722ffeac779d2529a348f99567fa5c33
nvd.nist.gov/vuln/detail/CVE-2011-3363
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access.redhat.com/errata/RHSA-2011:1465
docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/6.1_Technical_Notes/kernel.html
security.access.redhat.com/data/csaf/v2/advisories/2011/rhsa-2011_1465.json
cve.org/CVERecord?id=CVE-2011-1162