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Home arrow SecurityAlert Database

Arrow  Topic :

Crash from invalid/corrupted MIME bodies when using voicemail with IMAP storage


Arrow  SecurityAlert : 3065
Arrow  CVE : CVE-2007-4521
Arrow  SecurityRisk : Low  Security Risk Low  (About)
Arrow  Remote Exploit : Yes
Arrow  Local Exploit : No
Arrow  Exploit Given : No
Arrow  Credit : Mark Michelson
Arrow  Published : 28.08.2007

Arrow  Affected Software : Asterisk Asterisk 1.4.11
Asterisk Asterisk 1.4.10
Asterisk Asterisk 1.4.9
Asterisk Asterisk 1.4.8
Asterisk Asterisk 1.4.7
Asterisk Asterisk 1.4.6
Asterisk Asterisk 1.4.5



Arrow  Advisory Text :  

Asterisk Project Security Advisory - AST-2007-021

+-----------------------------------------------------------------------
-+
| Product | Asterisk
|

|--------------------+--------------------------------------------------
-|
| Summary | Crash from invalid/corrupted MIME bodies when
|
| | using voicemail with IMAP storage
|

|--------------------+--------------------------------------------------
-|
| Nature of Advisory | Crash
|

|--------------------+--------------------------------------------------
-|
| Susceptibility | Remote Unauthenticated Sessions
|

|--------------------+--------------------------------------------------
-|
| Severity | minor
|

|--------------------+--------------------------------------------------
-|
| Exploits Known | No
|

|--------------------+--------------------------------------------------
-|
| Reported On | August 23, 2007
|

|--------------------+--------------------------------------------------
-|
| Reported By | Kevin Stewart
|

|--------------------+--------------------------------------------------
-|
| Posted On | August 24, 2007
|

|--------------------+--------------------------------------------------
-|
| Last Updated On | August 24, 2007
|

|--------------------+--------------------------------------------------
-|
| Advisory Contact | Mark Michelson <mmichelson (at) digium (dot) com
[email concealed]> |

|--------------------+--------------------------------------------------
-|
| CVE Name |CVE-2007-4521
|

+-----------------------------------------------------------------------
-+

+-----------------------------------------------------------------------
-+
| Description | If Asterisk is configured to use IMAP as its backend
|
| | storage for voicemail, then an e-mail sent to a user
|
| | with an invalid/corrupted MIME body will cause Asterisk
|
| | to crash when the user listens to their voicemail using
|
| | the phone.
|
| |
|
| | This does not affect any other voicemail storage option,
|
| | nor does it affect users who check their voicemail via
|
| | e-mail when using IMAP storage.
|

+-----------------------------------------------------------------------
-+

+-----------------------------------------------------------------------
-+
| Resolution | Since this is a minor issue, a new release is not
|
| | immediately planned. However, the issue will be fixed in
|
| | Asterisk Open Source version 1.4.12 when it is released.
|

+-----------------------------------------------------------------------
-+

+-----------------------------------------------------------------------
-+
| Affected Versions
|

|-----------------------------------------------------------------------
-|
| Product | Release |
|
| | Series |
|

|--------------------------------+-------------+------------------------
-|
| Asterisk Open Source | 1.0.x | Not Affected
|

|--------------------------------+-------------+------------------------
-|
| Asterisk Open Source | 1.2.x | Not Affected
|

|--------------------------------+-------------+------------------------
-|
| Asterisk Open Source | 1.4.x | Versions 1.4.5 - 1.4.11
|

|--------------------------------+-------------+------------------------
-|
| Asterisk Business Edition | A.x.x | Not Affected
|

|--------------------------------+-------------+------------------------
-|
| Asterisk Business Edition | B.x.x | Not Affected
|

|--------------------------------+-------------+------------------------
-|
| AsteriskNOW | pre-release | Not Affected
|

|--------------------------------+-------------+------------------------
-|
| Asterisk Appliance Developer | 0.x.x | Not Affected
|
| Kit | |
|

|--------------------------------+-------------+------------------------
-|
| s800i (Asterisk Appliance) | 1.0.x | Not Affectted
|

+-----------------------------------------------------------------------
-+

+-----------------------------------------------------------------------
------------+
| Corrected In
|
|-----------------------------------------------------------------------
------------|
|Product | Release
|
|--------+--------------------------------------------------------------
------------|
|Asterisk| 1.4.12 (not released), patch can be found here:
|
| Open
|http://lists.digium.com/pipermail/asterisk-commits/2007-August/015743.h
tml|
| Source |
|
|--------+--------------------------------------------------------------
------------|
|--------+--------------------------------------------------------------
------------|
+-----------------------------------------------------------------------
------------+

+-----------------------------------------------------------------------
-+
| Links | http://bugs.digium.com/view.php?id=10544
|

+-----------------------------------------------------------------------
-+

+-----------------------------------------------------------------------
-+
| Asterisk Project Security Advisories are posted at
|
| http://www.asterisk.org/security.
|
|
|
| This document may be superseded by later versions; if so, the latest
|
| version will be posted at
|
| http://downloads.digium.com/pub/asa/AST-2007-021.pdf and
|
| http://downloads.digium.com/pub/asa/AST-2007-021.html.
|

+-----------------------------------------------------------------------
-+

+-----------------------------------------------------------------------
-+
| Revision History
|

|-----------------------------------------------------------------------
-|
| Date | Editor | Revisions Made
|

|----------------------+---------------------+--------------------------
-|
| August 24, 2007 | Mark Michelson | Initial Release
|

+-----------------------------------------------------------------------
-+

Asterisk Project Security Advisory - AST-2007-021
Copyright (c) 2007 Digium, Inc. All Rights Reserved.
Permission is hereby granted to distribute and publish this advisory in
its
original, unaltered form.





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