Bug 110901 - CAN-2003-0967/8 FreeRadius remote DoS
CAN-2003-0967/8 FreeRadius remote DoS
Status: CLOSED ERRATA
Product: Red Hat Enterprise Linux 3
Classification: Red Hat
Component: freeradius (Show other bugs)
3.0
All Linux
medium Severity medium
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Assigned To: Thomas Woerner
http://marc.theaimsgroup.com/?l=bugtr...
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: 111503 (view as bug list)
Depends On:
Blocks:
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Reported: 2003-11-25 07:48 EST by Mark J. Cox (Product Security)
Modified: 2007-11-30 17:06 EST (History)
1 user (show)

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Doc Type: Bug Fix
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Last Closed: 2003-12-10 11:56:53 EST
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Description Mark J. Cox (Product Security) 2003-11-25 07:48:06 EST
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 (Product Security) 2003-11-27 04:48:43 EST
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 (Product Security) 2003-12-07 16:30:48 EST
errata in progress, currently in QA
Comment 3 Mark J. Cox (Product Security) 2003-12-07 16:31:14 EST
*** Bug 111503 has been marked as a duplicate of this bug. ***
Comment 4 Mark J. Cox (Product Security) 2003-12-10 11:56:53 EST
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

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