Archive for category t.38

Asterisk 10.2.0-rc2 Now Available

Asterisk The Open Source PBX & Telephony Platform

Asterisk The Open Source PBX & Telephony Platform

The Asterisk Development Team is pleased to announce the second release candidate of Asterisk 10.2.0. This release candidate is available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk/

The release of Asterisk 10.2.0-rc2 resolves several issues reported by the community and would have not been possible without your participation.
Thank you!

The following is a sample of the issues resolved in this release candidate:

  • Fix deadlocks occuring in chan_agent.Bad locking order was added to chan_agent to prevent a segfault that occurred due to a race condition. This patch addresses the bad locking order by locking
    the channel and its private data in the correct order. This stops the deadlock, which occurred when doing multiple interactions with agents. (closes issue ASTERISK-19285) Reported by: Alex Villacis Lasso
  • Include iLBC source code for distribution with AsteriskClarification regarding the iLBC source code was provided by Google, and the appropriate licenses have been included in the codecs/ilbc folder.
    (closes issue: ASTERISK-18943) Reporter: Leif Madsen
  • Fix crash from bridge channel hangup race condition in ConfBridgeThis patch addresses two issues in ConfBridge and the channel bridge layer:
    1. It fixes a race condition wherein the bridge channel could be hung up
    2. It removes the deadlock avoidance from the bridging layer and makes the bridge_pvt an ao2 ref counted object
    (issue ASTERISK-18988, ASTERISK-18885, ASTERISK-19100)
    Reported by: Dmitry Melekhov, Alexander Akimov
  • Don’t do a DNS lookup on an outbound REGISTER host if there is an outbound proxy configured.
    (closes issue ASTERISK-16550) reported by: Olle Johansson
  • Create and initialize udptl only when a dialog negotiates for image mediaPrior to this patch, the udptl struct was allocated and initialized when a dialog was associated with a peer that supported T.38, when a new SIP channel was allocated, or when an INVITE request was received. This resulted in any dialog associated with a peer that supported T.38 having udptl support assigned to it, including the UDP ports needed for communication. This patch creates and initializes the udptl structure only when the SDP for a dialog specifies that image media is supported, or when Asterisk indicates that a dialog needs to support T.38.
    (closes issue ASTERISK-16698, ASTERISK-16794)
    Reported by: under, Elazar; Tested by: Stefan Schmidt
  • Allow only one thread at time to do Asterisk cleanup/shutdownAdd locking around the really-really-quit part of the core stop/restart part. Previously more than one thread could be called to do cleanup, causing atexit handlers to be run multiple times, in turn causing segfaults. (issue ASTERISK-18883)
    Patch by: Walter Doekes
  • Fix outbound DTMF for inband mode in chan_ooh323This tells asterisk core to generate DTMF sounds. (Closes issue ASTERISK-19233) Reported by: Matt Behrens Patches:
    chan_ooh323.c.patch uploaded by Matt Behrens (License #6346)

And much more! For a full list of changes in the current release, please see the ChangeLog:

http://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLog-…

Thank you for your continued support of Asterisk!

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Asterisk 1.8.10.0-rc2 Now Available

Asterisk The Open Source PBX & Telephony Platform

Asterisk The Open Source PBX & Telephony Platform

The Asterisk Development Team is pleased to announce the second release candidate of Asterisk 1.8.10.0. This release candidate is available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk/

The release of Asterisk 1.8.10.0-rc2 resolves several issues reported by the community and would have not been possible without your participation.
Thank you!

The following is a sample of the issues resolved in this release candidate:

  • Fix deadlocks occuring in chan_agent.Bad locking order was added to chan_agent to prevent a segfault that occurred due to a race condition. This patch addresses the bad locking order by locking the channel and its private data in the correct order. This stops the deadlock, which occurred when doing multiple interactions with agents. (closes issue ASTERISK-19285) Reported by: Alex Villacis Lasso
  • Include iLBC source code for distribution with AsteriskClarification regarding the iLBC source code was provided by Google, and the appropriate licenses have been included in the codecs/ilbc folder.
    (closes issue: ASTERISK-18943) Reporter: Leif Madsen
  • Don’t do a DNS lookup on an outbound REGISTER host if there is an outbound proxy configured.
    (closes issue ASTERISK-16550) reported by: Olle Johansson
  • Create and initialize udptl only when a dialog negotiates for image mediaPrior to this patch, the udptl struct was allocated and initialized when a dialog was associated with a peer that supported T.38, when a new SIP channel was allocated, or when an INVITE request was received. This resulted in any dialog associated with a peer that supported T.38 having udptl support assigned to it, including the UDP ports needed for communication. This patch creates and initializes the udptl structure only when the SDP for a dialog specifies that image media is supported, or when Asterisk indicates that a dialog needs to support T.38.
    (closes issue ASTERISK-16698, ASTERISK-16794)
    Reported by: under, Elazar; Tested by: Stefan Schmidt
  • Allow only one thread at time to do Asterisk cleanup/shutdownAdd locking around the really-really-quit part of the core stop/restart part. Previously more than one thread could be called to do cleanup, causing atexit handlers to be run multiple times, in turn causing segfaults. (issue ASTERISK-18883)
    Patch by: Walter Doekes
  • Fix outbound DTMF for inband mode in chan_ooh323 This tells asterisk core to generate DTMF sounds. (Closes issue ASTERISK-19233) Reported by: Matt Behrens Patches: chan_ooh323.c.patch uploaded by Matt Behrens (License #6346)

And much more! For a full list of changes in the current release, please see the ChangeLog:

http://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLog-…

Thank you for your continued support of Asterisk!

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Asterisk 1.8.9.1 Now Available

Asterisk The Open Source PBX & Telephony Platform

Asterisk The Open Source PBX & Telephony Platform

The Asterisk Development Team has announced the release of Asterisk 1.8.9.1.
This release is available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk/

The release of Asterisk 1.8.9.1 resolves several issues reported by the community and would have not been possible without your participation.
Thank you!

The following is a sample of the issues resolved in this release:

  • — Fixes deadlocks occuring in chan_agent —
    (Closes issue ASTERISK-19285. Reported by: Alex Villacis Lasso)
  • — Ensure entering T.38 passthrough does not cause an infinite loop —
    (Closes issue ASTERISK-18951. Reported-by: Kristijan Vrban)

For a full list of changes in this release, please see the ChangeLog:

http://downloads.asterisk.org/pub/telephony/asterisk/ChangeLog-1.8.9.1

Thank you for your continued support of Asterisk!

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Asterisk 10.1.1 Now Available

Asterisk The Open Source PBX & Telephony Platform

Asterisk The Open Source PBX & Telephony Platform

The Asterisk Development Team has announced the release of Asterisk 10.1.1. This release is available for immediate download at
http://downloads.asterisk.org/pub/telephony/asterisk/

The release of Asterisk 10.1.1 resolves several issues reported by the community and would have not been possible without your participation.
Thank you!

The following is a sample of the issues resolved in this release:

  • — Fixes deadlocks occuring in chan_agent —
    (Closes issue ASTERISK-19285. Reported by: Alex Villacis Lasso)
  • — Ensure entering T.38 passthrough does not cause an infinite loop —
    (Closes issue ASTERISK-18951. Reported-by: Kristijan Vrban)

For a full list of changes in this release, please see the ChangeLog:

http://downloads.asterisk.org/pub/telephony/asterisk/ChangeLog-10.1.1

Thank you for your continued support of Asterisk!

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Asterisk 1.8.10.0-rc1 Now Available

Asterisk The Open Source PBX & Telephony Platform

Asterisk The Open Source PBX & Telephony Platform

The Asterisk Development Team is pleased to announce the first release candidate of Asterisk 1.8.10.0. This release candidate is available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk/

The release of Asterisk 1.8.10.0-rc1 resolves several issues reported by the community and would have not been possible without your participation.
Thank you!

The following is a sample of the issues resolved in this release candidate:

  • Include iLBC source code for distribution with AsteriskClarification regarding the iLBC source code was provided by Google, and the appropriate licenses have been included in the codecs/ilbc folder.
    (closes issue: ASTERISK-18943) Reporter: Leif Madsen
  • Don’t do a DNS lookup on an outbound REGISTER host if there is an outbound proxy configured.
    (closes issue ASTERISK-16550) reported by: Olle Johansson
  • Create and initialize udptl only when a dialog negotiates for image mediaPrior to this patch, the udptl struct was allocated and initialized when a dialog was associated with a peer that supported T.38, when a new SIP channel was allocated, or when an INVITE request was received. This resulted in any dialog associated with a peer that supported T.38 having udptl support assigned to it, including the UDP ports needed for communication. This patch creates and initializes the udptl structure only when the SDP for a dialog specifies that image media is supported, or when Asterisk indicates that a dialog needs to support T.38.
    (closes issue ASTERISK-16698, ASTERISK-16794)
    Reported by: under, Elazar; Tested by: Stefan Schmidt
  • Allow only one thread at time to do Asterisk cleanup/shutdownAdd locking around the really-really-quit part of the core stop/restart part. Previously more than one thread could be called to do cleanup, causing atexit handlers to be run multiple times, in turn causing segfaults.
    (issue ASTERISK-18883)
    Patch by: Walter Doekes
  • Fix outbound DTMF for inband mode in chan_ooh323This tells asterisk core to generate DTMF sounds. (Closes issue ASTERISK-19233) Reported by: Matt Behrens Patches: chan_ooh323.c.patch uploaded by Matt Behrens (License #6346)

And much more! For a full list of changes in the current release, please see the ChangeLog:

http://downloads.asterisk.org/pub/telephony/asterisk/releases/ChangeLog-…

Thank you for your continued support of Asterisk!

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Asterisk 10.0.0 Is Released

Asterisk The Open Source PBX & Telephony Platform

Asterisk The Open Source PBX & Telephony Platform

The Asterisk Development Team is proud to announce the release of Asterisk 10.0.0. This release is available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk/

Asterisk 10 is the next major release series of Asterisk. It will be a Standard support release, similar to Asterisk 1.6.2. For more information about support time lines for Asterisk releases, see the Asterisk versions page:

https://wiki.asterisk.org/wiki/display/AST/Asterisk+Versions

With the release of the Asterisk 10 branch, the preceding ’1.’ has been removed from the version number per the blog post available at

http://blogs.digium.com/2011/07/21/the-evolution-of-asterisk-or-how-we-a…

The release of Asterisk 10 would not have been possible without the support and contributions of the community.

You can find an overview of the work involved with the 10.0.0 release in the summary:

http://svn.asterisk.org/svn/asterisk/tags/10.0.0/asterisk-10.0.0-summary…

A short list of available features includes:

  • T.38 gateway functionality has been added to res_fax.
  • Protocol independent out-of-call messaging support. Text messages not associated with an active call can now be routed through the Asterisk dialplan. SIP and XMPP are supported so far.
  • New highly optimized and customizable ConfBridge application capable of mixing audio at sample rates ranging from 8kHz-192kHz
  • Addition of video_mode option in confbridge.conf to provide basic video conferencing in the ConfBridge() dialplan application.
  • Support for defining hints has been added to pbx_lua.
  • Replacement of Berkeley DB with SQLite for the Asterisk Database (AstDB).
  • Much, much more!

A full list of new features can be found in the CHANGES file.

http://svn.asterisk.org/svn/asterisk/branches/10/CHANGES

Also, when upgrading a system between major versions, it is imperative that you read and understand the contents of the UPGRADE.txt file, which is located at:

http://svn.asterisk.org/svn/asterisk/branches/10/UPGRADE.txt

Thank you for your continued support of Asterisk!

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Asterisk 10.0.0 Beta 1 Now Available

Asterisk The Open Source PBX & Telephony Platform

Asterisk The Open Source PBX & Telephony Platform

The Asterisk Development Team is pleased to announce the first beta release of Asterisk 10.0.0-beta1. This release is available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk/

With the release of the Asterisk 10 branch, the preceding ’1.’ has been removed from the version number per the blog post available at http://blogs.digium.com/2011/07/21/the-evolution-of-asterisk-or-how-we-a…

All interested users of Asterisk are encouraged to participate in the Asterisk 10 testing process. Please report any issues found to the issue tracker, https://issues.asterisk.org/jira. It is also very useful to see successful test reports. Please post those to the asterisk-dev mailing list.

All Asterisk users are invited to participate in the #asterisk-testing channel on IRC to work together in testing the many parts of Asterisk. Additionally users can make use of the RPM and DEB packages now being built for all Asterisk releases. More information available at https://wiki.asterisk.org/wiki/display/AST/Asterisk+Packages

Asterisk 10 is the next major release series of Asterisk. It will be a Standard support release, similar to Asterisk 1.6.2. For more information about support time lines for Asterisk releases, see the Asterisk
versions page: https://wiki.asterisk.org/wiki/display/AST/Asterisk+Versions

A short list of included features includes:

  • T.38 gateway functionality has been added to res_fax.
  • Protocol independent out-of-call messaging support. Text messages not associated with an active call can now be routed through the Asterisk dialplan. SIP and XMPP are supported so far.
  • New highly optimized and customizable ConfBridge application capable of mixing audio at sample rates ranging from 8kHz-192kHz
  • Addition of video_mode option in confbridge.conf to provide basic video conferencing in the ConfBridge() dialplan application.
  • Support for defining hints has been added to pbx_lua.
  • Replacement of Berkeley DB with SQLite for the Asterisk Database (AstDB).
  • Much, much more!

A full list of new features can be found in the CHANGES file.

For a full list of changes in the current release, please see the ChangeLog:

Thank you for your continued support of Asterisk!

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Asterisk 1.4.42 Now Available (Final Maintenance Release)

Asterisk The Open Source PBX & Telephony Platform

Asterisk The Open Source PBX & Telephony Platform

The Asterisk Development Team has announced the final maintenance release of Asterisk, version 1.4.42. This release is available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk/

Please note that Asterisk 1.4.42 is the final maintenance release from the 1.4 branch. Support for security related issues will continue until April 21, 2012. For more information about support of the various Asterisk branches, see https://wiki.asterisk.org/wiki/display/AST/Asterisk+Versions

The release of Asterisk 1.4.42 resolves several issues reported by the community and would have not been possible without your participation.
Thank you!

The following is a sample of the issues resolved in this release:

  • Resolve regression with ring groups in the Dial() application
    (Closes issue ASTERISK-17874. Reported by mspuhler. Patched by elguero)
  • Resolve deadlock when using tab completion on the ‘meetme kick’ CLI command when an invalid (non-existent) conference room is specified.
    (Closes issue ASTERISK-17771. Reported, patched by zvision)
  • Resolve issue where voice frames could be dropped when checking for T.38 during early media.
    (Closes issue ASTERISK-17705. Reported, patched by oej)
  • Resolve issue where DYNAMIC_FEATURES would not activate after a recent DTMF fix.
    (Closes issue ASTERISK-17914. Reported by vrban. Patched by twilson)

Additionally security announcements AST-2011-010, and AST-2011-011 have been resolved in this release.

For a full list of changes in this release, please see the ChangeLog:

Thank you for your continued support of Asterisk!

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Asterisk 1.4.39.2, Asterisk 1.6.1.22, Asterisk 1.6.2.16.2 and Asterisk 1.8.2.4 Now Available

Asterisk The Open Source PBX & Telephony Platform

Asterisk The Open Source PBX & Telephony Platform

The Asterisk Development Team has announced security releases for Asterisk branches 1.4, 1.6.1, 1.6.2, and 1.8. The available security releases are released as versions 1.4.39.2, 1.6.1.22, 1.6.2.16.2, and 1.8.2.4.

These releases are available for immediate download at http://downloads.asterisk.org/pub/telephony/asterisk/releases

The releases of Asterisk 1.4.39.2, 1.6.1.22, 1.6.2.16.2, and 1.8.2.4 resolve an issue that when decoding UDPTL packets, multiple stack and heap based arrays can be made to overflow by specially crafted packets. Systems doing T.38 pass through or termination are vulnerable. The issue and resolution are described in the AST-2011-002 security advisory.

For more information about the details of this vulnerability, please read the security advisory AST-2011-002, which was released at the same time as this announcement.

For a full list of changes in the current release, please see the ChangeLog:

Security advisory AST-2011-002 is available at:

Thank you for your continued support of Asterisk!

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Asterisk Security Advisory – AST-2011-002: Multiple array overflow and crash vulnerabilities in UDPTL code

Product Asterisk
Summary Multiple array overflow and crash vulnerabilities in UDPTL code
Nature of Advisory Exploitable Stack and Heap Array Overflows
Susceptibility Remote Unauthenticated Sessions
Severity Critical
Exploits Known No
Reported On January 27, 2011
Reported By Matthew Nicholson
Posted On February 21, 2011
Last Updated On February 22, 2011
Advisory Contact Matthew Nicholson <mnicholson@digium.com>
CVE Name
Description When decoding UDPTL packets, multiple stack and heap based arrays can be made to overflow by specially crafted packets. Systems configured for T.38 pass through or termination are vulnerable.

Read the rest of this entry »

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