CVE-2011-1771
Description
From CVE.org
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.
Statement
This issue did not affect the Linux kernel as shipped with Red Hat Enterprise Linux 4, 5, and Red Hat Enterprise Linux MRG as they did not backport the upstream commit cdff08e7 that introduced this issue. Future kernel updates for Red Hat Enterprise Linux 6 may address this flaw.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
CVSS v2 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 4.7 | 4.4 | N/A |
| Attack Vector | Local | Local | N/A |
| Access Complexity | Medium | Medium | N/A |
| Authentication | None | None | N/A |
| Confidentiality Impact | None | Partial | N/A |
| Integrity Impact | None | Partial | N/A |
| Availability Impact | Complete | Partial | N/A |
Vector
Red Hat: AV:L/AC:M/Au:N/C:N/I:N/A:C
NVD: AV:L/AC:M/Au:N/C:P/I:P/A:P
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