CVE-2009-1630

CVE Details

Release Date:	2009-05-14
Impact:	Moderate	What is this?

Description

The nfs_permission function in fs/nfs/dir.c in the NFS client implementation in the Linux kernel 2.6.29.3 and earlier, when atomic_open is available, does not check execute (aka EXEC or MAY_EXEC) permission bits, which allows local users to bypass permissions and execute files, as demonstrated by files on an NFSv4 fileserver.

See more information about CVE-2009-1630 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 Enterprise Linux version 4 (kernel)	ELSA-2009-1132	2009-07-01
Oracle Enterprise Linux version 4 (ocfs2-2.6.9-89.0.3.0.1.EL)	ELSA-2009-1132	2009-07-01
Oracle Enterprise Linux version 4 (oracleasm-2.6.9-89.0.3.0.1.EL)	ELSA-2009-1132	2009-07-01
Oracle Linux version 5 (kernel)	ELSA-2009-1106	2009-06-17
Oracle Linux version 5 (ocfs2-2.6.18-128.1.14.0.1.el5)	ELSA-2009-1106	2009-06-17
Oracle Linux version 5 (oracleasm-2.6.18-128.1.14.0.1.el5)	ELSA-2009-1106	2009-06-17