CVE-2009-2695

CVE Details

Release Date:

2009-08-28

Description

The Linux kernel before 2.6.31-rc7 does not properly prevent mmap operations that target page zero and other low memory addresses, which allows local users to gain privileges by exploiting NULL pointer dereference vulnerabilities, related to (1) the default configuration of the allow_unconfined_mmap_low boolean in SELinux on Red Hat Enterprise Linux (RHEL) 5, (2) an error that causes allow_unconfined_mmap_low to be ignored in the unconfined_t domain, (3) lack of a requirement for the CAP_SYS_RAWIO capability for these mmap operations, and (4) interaction between the mmap_min_addr protection mechanism and certain application programs.

See more information about CVE-2009-2695 from MITRE CVE dictionary and NIST NVD

CVSS v2.0 metrics

NOTE: The following CVSS v2.0 metrics and score provided are preliminary and subject to review.

Base Score:	7.2	Base Metrics:	AV:L/AC:L/Au:N/C:C/I:C/A:C
Access Vector:	Local network	Attack Complexity:	Low
Authentication:	None required	Confidentiality Impact:	Complete
Integrity Impact:	Complete	Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Linux version 5 (kernel)	ELSA-2009-1548	2009-11-03
Oracle Linux version 5 (ocfs2-2.6.18-164.6.1.0.1.el5)	ELSA-2009-1548	2009-11-03
Oracle Linux version 5 (oracleasm-2.6.18-164.6.1.0.1.el5)	ELSA-2009-1548	2009-11-03

This page is generated automatically and has not been checked for errors or omissions. For clarification or corrections please contact the Oracle Linux ULN team