CVE-2009-2848

CVE Details

Release Date:	2009-08-18
Impact:	Important	What is this?

Description

The execve function in the Linux kernel, possibly 2.6.30-rc6 and earlier, does not properly clear the current-clear_child_tid pointer, which allows local users to cause a denial of service (memory corruption) or possibly gain privileges via a clone system call with CLONE_CHILD_SETTID or CLONE_CHILD_CLEARTID enabled, which is not properly handled during thread creation and exit.

See more information about CVE-2009-2848 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:	4.7
Vector String:	AV:L/AC:M/Au:N/C:N/I:N/A:C
Version:	2.0
Attack Vector:	Local
Attack Complexity:	Medium
Authentication:	None
Confidentiality Impact:	None
Integrity Impact:	None
Availability Impact:	Complete

Errata information

Platform	Errata	Release Date
Oracle Enterprise Linux version 4 (kernel)	ELSA-2009-1438	2009-09-15
Oracle Enterprise Linux version 4 (ocfs2-2.6.9-89.0.11.0.1.EL)	ELSA-2009-1438	2009-09-15
Oracle Enterprise Linux version 4 (oracleasm-2.6.9-89.0.11.0.1.EL)	ELSA-2009-1438	2009-09-15
Oracle Linux version 5 (kernel)	ELSA-2009-1243	2009-09-08
Oracle Linux version 5 (ocfs2-2.6.18-164.el5)	ELSA-2009-1243	2009-09-08
Oracle Linux version 5 (oracleasm-2.6.18-164.el5)	ELSA-2009-1243	2009-09-08