Bug 171385

Summary:	CVE-2005-3274 ip_vs_conn_flush race
Product:	Red Hat Enterprise Linux 2.1	Reporter:	Mark J. Cox <mjc>
Component:	kernel	Assignee:	Don Howard <dhoward>
Status:	CLOSED ERRATA	QA Contact:	Brian Brock <bbrock>
Severity:	high	Docs Contact:
Priority:	medium
Version:	2.1	Keywords:	Security
Target Milestone:	---
Target Release:	---
Hardware:	ia64
OS:	Linux
Whiteboard:	public=20050628,impact=important,source=cve
Fixed In Version:	RHSA-2006-0190	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2006-02-01 17:47:01 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:
Bug Depends On:
Bug Blocks:	143573

Description Mark J. Cox 2005-10-21 12:32:46 UTC

CVE-2005-3274 states:
        Race condition in ip_vs_conn_flush in Linux 2.6 before 2.6.13
        and 2.4 before 2.4.32-pre2, when running on SMP systems,
        allows local users to cause a denial of service (null
        dereference) by causing a connection timer to expire while the
        connection table is being flushed before the appropriate lock
        is acquired.

http://linux.bkbits.net:8080/linux-2.4/cset@42e69d4edEXsgo_fbmvtFPjfALoEug

This issue looks to affect rhel2.1 ipf because of the backport of ipvs in
linux-2.4.18-ipvs-1.0.3.patch

Note for RHEL3 we updated the similar backported patch we included for U6.
RHEL2.1 x86 does not look vulnerable as it uses a more outdated version of the
ipvs code.

Comment 4 Red Hat Bugzilla 2006-02-01 17:47:01 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2006-0190.html