CVE-2011-1771

kernel: cifs oops when creating file with O_DIRECT set

Severity Score

7.8

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

La función cifs_close en fs/cifs/file.c en el kernel de Linux antes de su versión v2.6.39 permite a usuarios locales provocar una denegación de servicio (puntero a NULL y Error) o posiblemente tener un impacto no especificado estableciendo el flag O_DIRECT durante un intento de abrir un archivo en un sistema de archivos CIFS.

*Credits: N/A

CVSS Scores

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

Partial

Attack Vector

Local

Attack Complexity

Medium

Authentication

None

Confidentiality

None

Integrity

None

Availability

Complete

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2011-04-19 CVE Reserved
2011-06-02 CVE Published
2023-03-08 EPSS Updated
2024-08-06 CVE Updated
2024-08-06 First Exploit
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-476: NULL Pointer Dereference

CAPEC

References (8)

URL	Tag	Source
http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commit%3Bh=7797069305d13252fd66cf722aa8f2cbeb3c95cd	X_refsource_confirm
http://marc.info/?l=linux-cifs&m=130204730006155&w=2	Mailing List
http://securityreason.com/securityalert/8367	Third Party Advisory

URL	Date	SRC
http://marc.info/?l=linux-cifs&m=130204357001849&w=2	2024-08-06
http://www.openwall.com/lists/oss-security/2011/05/09/2	2024-08-06
https://bugzilla.redhat.com/show_bug.cgi?id=703016	2024-08-06

URL	Date	SRC

URL	Date	SRC
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39	2023-02-13
https://access.redhat.com/security/cve/CVE-2011-1771	2011-06-01

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Linux Search vendor "Linux"		Linux Kernel Search vendor "Linux" for product "Linux Kernel"				< 2.6.39 Search vendor "Linux" for product "Linux Kernel" and version " < 2.6.39"		-		Affected