CVE-2011-1771
The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to...
CVE-2011-1771 is a high vulnerability (CVSS 7.8) in Linux Kernel, published September 6, 2011. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.52%, the 44th percentile. No source names a fixed version.
- Severity
- 7.8 HighCVSS 3.1, NVD
- Exploit chance
- 0.52%EPSS, 44th percentile
- Exploitation
- None knownNot on CISA’s or ENISA’s lists
- Fixed in
- No fix listedNo source names one
Description
The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (NULL pointer dereference and BUG) or possibly have unspecified other impact by setting the O_DIRECT flag during an attempt to open a file on a CIFS filesystem.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- Low
- User interaction
- None
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
kernelRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-bootwrapperRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-debugRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-debug-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-debug-develRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-debuginfo-common-i686Red Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-debuginfo-common-ppc64Red Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-debuginfo-common-s390xRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-debuginfo-common-x86_64Red Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
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| Package | Affected | Fixed |
|---|---|---|
kernel-develRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-docRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-firmwareRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-headersRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-kdumpRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-kdump-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
kernel-kdump-develRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
perfRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
perf-debuginfoRed Hat:enterprise_linux:6::server From an advisory covering 5 CVEs | before 0:2.6.32-131.2.1.el6 | 0:2.6.32-131.2.1.el6 |
What each source reports
NVD Score used
The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (NULL pointer dereference and BUG) or possibly have unspecified other impact by setting the O_DIRECT flag during an attempt to open a file on a CIFS filesystem.
- Record
CVE-2011-1771- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - CVSS 2.0
- 4.4 Medium
AV:L/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-476
- Updated
- 2026-11-02
CVE ListNo score
The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (NULL pointer dereference and BUG) or possibly have unspecified other impact by setting the O_DIRECT flag during an attempt to open a file on a CIFS filesystem.
- Record
CVE-2011-1771- Updated
- 2026-11-02
EUVDEUVD-2011-1770No score
The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (NULL pointer dereference and BUG) or possibly have unspecified other impact by setting the O_DIRECT flag during an attempt to open a file on a CIFS filesystem.
- Record
EUVD-2011-1770- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-68xv-2p42-wm3q
The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to...
The cifs_close function in fs/cifs/file.c in the Linux kernel before 2.6.39 allows local users to cause a denial of service (NULL pointer dereference and BUG) or possibly have unspecified other impact by setting the O_DIRECT flag during an attempt to open a file on a CIFS filesystem.
- Record
GHSA-68xv-2p42-wm3q- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - Weakness
- CWE-476
- 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
marc.info?l=linux-cifs&m=130204730006155&w=2
openwall.com/lists/oss-security/2011/05/09/2
securityreason.com/securityalert/8367
kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
bugzilla.redhat.com/show_bug.cgi?id=703016
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git.kernel.org?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7797069305d13252fd66cf722aa8f2cbeb3c95cd
nvd.nist.gov/vuln/detail/CVE-2011-1771
github.com/advisories/GHSA-68xv-2p42-wm3q
access.redhat.com/errata/RHSA-2011:0836
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_0836.json
cve.org/CVERecord?id=CVE-2010-3858