Bug 115820

Summary:	CAN-2004-0077 Linux kernel do_mremap VMA limit local privilege escalation
Product:	Red Hat Enterprise Linux 3	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Ernie Petrides <petrides>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3.0	CC:	petrides, riel
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2004-03-11 09:17:35 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Mark J. Cox 2004-02-16 13:49:49 UTC

Paul Starzetz discovered a flaw in return value checking in mremap()
in the Linux kernel versions 2.4.24 and previous that may allow a
local attacker to gain root privileges. No exploit is currently
available; however this issue may be exploitable. 

Affected: 3

Embargoed until Feb18

Comment 1 Ernie Petrides 2004-02-19 21:26:53 UTC

The fix for this problem was committed to the RHEL3 U2 patch pool
on 9-Feb-2004, and has been available internally with the build of
kernel version 2.4.21-9.6.EL.

This problem was also fixed in kernel version 2.4.21-9.0.1.EL, which
was just released today on RHN as errata advisory RHSA-2004:066.