CVE-2011-1771

high
New! CVE Severity Now Using CVSS v3

The calculated severity for CVEs has been updated to use CVSS v3 by default. CVEs that do not have a CVSS v3 score will fall back CVSS v2 for calculating severity. Severity display preferences can be toggled in the settings dropdown.

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

http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=7797069305d13252fd66cf722aa8f2cbeb3c95cd

http://marc.info/?l=linux-cifs&m=130204357001849&w=2

http://marc.info/?l=linux-cifs&m=130204730006155&w=2

http://securityreason.com/securityalert/8367

http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.39

http://www.openwall.com/lists/oss-security/2011/05/09/2

https://bugzilla.redhat.com/show_bug.cgi?id=703016

Details

Source: MITRE

Published: 2011-09-06

Updated: 2020-07-27

Type: CWE-476

Risk Information

CVSS v2

Base Score: 4.4

Vector: AV:L/AC:M/Au:N/C:P/I:P/A:P

Impact Score: 6.4

Exploitability Score: 3.4

Severity: MEDIUM

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Impact Score: 5.9

Exploitability Score: 1.8

Severity: HIGH

Vulnerable Software

Configuration 1

OR

cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

Tenable Plugins

View all (5 total)

IDNameProductFamilySeverity
68277Oracle Linux 6 : kernel (ELSA-2011-0836)NessusOracle Linux Local Security Checks
high
56768Ubuntu 10.04 LTS : linux-lts-backport-natty vulnerabilities (USN-1256-1)NessusUbuntu Local Security Checks
critical
56257USN-1212-1 : linux-ti-omap4 vulnerabilitiesNessusUbuntu Local Security Checks
high
55591Ubuntu 11.04 : linux vulnerabilities (USN-1167-1)NessusUbuntu Local Security Checks
medium
54941RHEL 6 : kernel (RHSA-2011:0836)NessusRed Hat Local Security Checks
high