Posted: Wed Jun 04, 2008 9:21 pm Post subject: [asterisk-announce] AST-2008-009: AST-2008-007 Cryptographic
Asterisk Project Security Advisory - AST-2008-009
+------------------------------------------------------------------------+
| Product | Asterisk-Addons |
|--------------------+---------------------------------------------------|
| Summary | Remote crash vulnerability in ooh323 channel |
| | driver |
|--------------------+---------------------------------------------------|
| Nature of Advisory | Remote crash |
|--------------------+---------------------------------------------------|
| Susceptibility | Remote unauthenticated sessions |
|--------------------+---------------------------------------------------|
| Severity | Major |
|--------------------+---------------------------------------------------|
| Exploits Known | No |
|--------------------+---------------------------------------------------|
| Reported On | May 29, 2008 |
|--------------------+---------------------------------------------------|
| Reported By | Tzafrir Cohen <tzafrir DOT cohen AT xorcom DOT |
| | com> |
|--------------------+---------------------------------------------------|
| Posted On | June 4, 2008 |
|--------------------+---------------------------------------------------|
| Last Updated On | June 4, 2008 |
|--------------------+---------------------------------------------------|
| Advisory Contact | Mark Michelson <mmichelson AT digium DOT com> |
|--------------------+---------------------------------------------------|
| CVE Name | CVE-2008-2543 |
+------------------------------------------------------------------------+
+------------------------------------------------------------------------+
| Description | The ooh323 channel driver provided in Asterisk Addons |
| | used a TCP connection to pass commands internally. The |
| | payload of these packets included addresses of memory |
| | which were to be freed after the command was processed. |
| | By sending arbitrary data to the listening TCP socket, |
| | one could cause an almost certain crash since the |
| | command handler would attempt to free invalid memory. |
| | This problem was made worse by the fact that the |
| | listening TCP socket was bound to whatever IP address |
| | was specified by the "bindaddr" option in ooh323.conf |
+------------------------------------------------------------------------+
+------------------------------------------------------------------------+
| Resolution | The TCP connection used by ooh323 has been replaced with |
| | a pipe. The effect of this change is that data from |
| | outside the ooh323 process may not be injected. |
+------------------------------------------------------------------------+
+------------------------------------------------------------------------+
| Revision History |
|------------------------------------------------------------------------|
| Date | Editor | Revisions Made |
|-------------------+----------------------+-----------------------------|
| Jun 3, 2008 | Mark Michelson | Initial draft |
+------------------------------------------------------------------------+
Asterisk Project Security Advisory - AST-2008-009
Copyright (c) 2008 Digium, Inc. All Rights Reserved.
Permission is hereby granted to distribute and publish this advisory in its
original, unaltered form.
_______________________________________________
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