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Bug 110901

Summary:	CAN-2003-0967/8 FreeRadius remote DoS
Product:	Red Hat Enterprise Linux 3	Reporter:	Mark J. Cox <mjc>
Component:	freeradius	Assignee:	Thomas Woerner <twoerner>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	3.0	CC:	alietss
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
URL:	http://marc.theaimsgroup.com/?l=bugtraq&m=106944220426970
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2003-12-10 16:56:53 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 2003-11-25 12:48:06 UTC

A remote DoS in FreeRadius was reported on Bugtraq Nov20 (up to
version 0.9.2):

A RADIUS attribute which has a 'tag' (RFC 2868), and is of type
'string', and which is 2-3 octets long, may cause the server to call
'memcpy' with a length argument of '-1'.

CVE name requested

Affects: 3AS 3ES

Comment 1 Mark J. Cox 2003-11-27 09:48:43 UTC

CAN-2003-0967

rad_decode in FreeRADIUS 0.9.2 and earlier allows remote attackers to
cause a denial of service (crash) via a short RADIUS string attribute
with a tag, which causes memcpy to be called with a -1 length
argument, as demonstrated using the Tunnel-Password attribute.

CAN-2003-0968 

Stack-based buffer overflow in SMB_Logon_Server of the rlm_smb
experimental module for FreeRADIUS 0.9.3 and earlier allows remote
attackers to execute arbitrary code via a long User-Password
attribute.

(note the latter is only in an experimental non-default module)

Comment 2 Mark J. Cox 2003-12-07 21:30:48 UTC

errata in progress, currently in QA

Comment 3 Mark J. Cox 2003-12-07 21:31:14 UTC

*** Bug 111503 has been marked as a duplicate of this bug. ***

Comment 4 Mark J. Cox 2003-12-10 16:56:53 UTC

An errata 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-2003-386.html