PT-2011-3359 · Linux+1 · Linux Kernel+1

Eugene Teo

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Published

2011-06-01

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Updated

2023-02-13

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CVE-2011-1771

CVSS v2.0

4.4

Medium

VectorAV:L/AC:M/Au:N/C:P/I:P/A:P
Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 2.6.39
Description The issue is related to the cifs close function in the Linux kernel, which can cause a denial of service due to a NULL pointer dereference and BUG when the O DIRECT flag is set during an attempt to open a file on a CIFS filesystem. This could potentially have other unspecified impacts.
Recommendations For Linux kernel versions prior to 2.6.39, update to version 2.6.39 or later to resolve the issue. As a temporary workaround, consider avoiding the use of the O DIRECT flag when opening files on a CIFS filesystem until the kernel is updated.

Exploit

Fix

DoS

NULL Pointer Dereference

Weakness Enumeration

CWE-476

Related Identifiers

CVE-2011-1771
RHSA-2011:0836
RHSA-2011_0836

Affected Products

Linux Kernel
Red Hat