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CVE-2011-1771

Date: September 6, 2011

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.

Language: C

Severity Score

Related Resources (11)

http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
https://nvd.nist.gov/vuln/detail/CVE-2011-1771
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7797069305d13252fd66cf722aa8f2cbeb3c95cd
http://securityreason.com/securityalert/8367
https://bugzilla.redhat.com/show_bug.cgi?id=703016
https://access.redhat.com/security/cve/CVE-2011-1771
https://people.canonical.com/~ubuntu-security/cve/CVE-2011-1771
http://marc.info/?l=linux-cifs&m=130204357001849&w=2
http://marc.info/?l=linux-cifs&m=130204730006155&w=2
http://www.openwall.com/lists/oss-security/2011/05/09/2
https://www.mend.io/vulnerability-database/CVE-2011-1771

Severity Score

Weakness Type (CWE)

NULL Pointer Dereference

CWE-476

CVSS v3.1

Base Score:
Attack Vector (AV): LOCAL
Attack Complexity (AC): LOW
Privileges Required (PR): LOW
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): HIGH
Integrity (I): HIGH
Availability (A): HIGH

CVSS v2

Base Score:
Access Vector (AV): LOCAL
Access Complexity (AC): MEDIUM
Authentication (AU): NONE
Confidentiality (C): PARTIAL
Integrity (I): PARTIAL
Availability (A): PARTIAL
Additional information:

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