CVE-2010-2524

CVE Details

Release Date:	2010-09-08
Impact:	Moderate	What is this?

Description

The DNS resolution functionality in the CIFS implementation in the Linux kernel before 2.6.35, when CONFIG_CIFS_DFS_UPCALL is enabled, relies on a user's keyring for the dns_resolver upcall in the cifs.upcall userspace helper, which allows local users to spoof the results of DNS queries and perform arbitrary CIFS mounts via vectors involving an add_key call, related to a cache stuffing issue and MS-DFS referrals.

See more information about CVE-2010-2524 from MITRE CVE dictionary and NIST NVD

NOTE: The following CVSS metrics and score provided are preliminary and subject to review.

CVSS v2 metrics

Base Score:	4.4
Vector String:	AV:L/AC:M/Au:N/C:P/I:P/A:P
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Medium
Authentication:	None
Confidentiality Impact:	Partial
Integrity Impact:	Partial
Availability Impact:	Partial

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel)	ELSA-2010-0610	2010-08-10
Oracle Linux version 5 (ocfs2-2.6.18-194.11.1.0.1.el5)	ELSA-2010-0610	2010-08-10
Oracle Linux version 5 (oracleasm-2.6.18-194.11.1.0.1.el5)	ELSA-2010-0610	2010-08-10