CVE-2011-1771

HIGH

Linux Kernel < 2.6.39 - Denial of Service via CIFS O_DIRECT Flag Handling

Title source: llm
STIX 2.1

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.

References (7)

Core 7
Core References
Third Party Advisory mailing-list x_refsource_mlist
http://marc.info/?l=linux-cifs&m=130204730006155&w=2
Exploit, Third Party Advisory mailing-list x_refsource_mlist
http://marc.info/?l=linux-cifs&m=130204357001849&w=2
Exploit, Mailing List, Patch, Third Party Advisory mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2011/05/09/2
Third Party Advisory third-party-advisory x_refsource_sreason
http://securityreason.com/securityalert/8367
Release Notes, Vendor Advisory x_refsource_confirm
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39
Exploit, Issue Tracking, Patch, Third Party Advisory x_refsource_confirm
https://bugzilla.redhat.com/show_bug.cgi?id=703016

Scores

CVSS v3 7.8
EPSS 0.0052
EPSS Percentile 40.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Details

CWE
CWE-476
Status published
Products (1)
linux/linux_kernel < 2.6.39
Published Sep 06, 2011
Tracked Since Feb 18, 2026