CVE-2009-2692

CVE Details

Release Date:	2009-08-14
Impact:	Important	What is this?

Description

The Linux kernel 2.6.0 through 2.6.30.4, and 2.4.4 through 2.4.37.4, does not initialize all function pointers for socket operations in proto_ops structures, which allows local users to trigger a NULL pointer dereference and gain privileges by using mmap to map page zero, placing arbitrary code on this page, and then invoking an unavailable operation, as demonstrated by the sendpage operation (sock_sendpage function) on a PF_PPPOX socket.

See more information about CVE-2009-2692 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:	7.2
Vector String:	AV:L/AC:L/Au:N/C:C/I:C/A:C
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Low
Authentication:	None
Confidentiality Impact:	Complete
Integrity Impact:	Complete
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Enterprise Linux version 4 (kernel)	ELSA-2009-1223	2009-08-24
Oracle Enterprise Linux version 4 (ocfs2-2.6.9-89.0.9.0.1.EL)	ELSA-2009-1223	2009-08-24
Oracle Enterprise Linux version 4 (oracleasm-2.6.9-89.0.9.0.1.EL)	ELSA-2009-1223	2009-08-24
Oracle Linux version 5 (kernel)	ELSA-2009-1222	2009-08-24
Oracle Linux version 5 (ocfs2-2.6.18-128.7.1.0.1.el5)	ELSA-2009-1222	2009-08-24
Oracle Linux version 5 (oracleasm-2.6.18-128.7.1.0.1.el5)	ELSA-2009-1222	2009-08-24