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Message-ID: <4f0ff70d-e5f4-fc9c-e01a-536fad65f44a@sangoma.com>
Date: Thu, 05 Sep 2024 17:07:06 +0000
From: Asterisk Development Team via Fulldisclosure
<fulldisclosure@...lists.org>
To: asterisk-dev@...ups.io, voipsec@...psa.org,
fulldisclosure@...lists.org, asterisk+news@...coursemail.com
Cc: Asterisk Development Team <asteriskteamsa@...goma.com>
Subject: [FD] Certified Asterisk Security Release certified-20.7-cert3
The Asterisk Development Team would like to announce security release
Certified Asterisk 20.7-cert3.
The release artifacts are available for immediate download at
https://github.com/asterisk/asterisk/releases/tag/certified-20.7-cert3
and
https://downloads.asterisk.org/pub/telephony/certified-asterisk
Repository: https://github.com/asterisk/asterisk
Tag: certified-20.7-cert3
## Change Log for Release asterisk-certified-20.7-cert3
### Links:
- [Full ChangeLog](https://downloads.asterisk.org/pub/telephony/certified-asterisk/releases/ChangeLog-certified-20.7-cert3.md)
- [GitHub Diff](https://github.com/asterisk/asterisk/compare/certified-20.7-cert2...certified-20.7-cert3)
- [Tarball](https://downloads.asterisk.org/pub/telephony/certified-asterisk/asterisk-certified-20.7-cert3.tar.gz)
- [Downloads](https://downloads.asterisk.org/pub/telephony/certified-asterisk)
### Summary:
- Commits: 8
- Commit Authors: 5
- Issues Resolved: 5
- Security Advisories Resolved: 1
- [GHSA-v428-g3cw-7hv9](https://github.com/asterisk/asterisk/security/advisories/GHSA-v428-g3cw-7hv9): A malformed Contact or Record-Route URI in an incoming SIP request can cause Asterisk to crash when res_resolver_unbound is used
### User Notes:
- #### res_pjsip_notify: add dialplan application
A new dialplan application PJSIPNotify is now available
which can send SIP NOTIFY requests from the dialplan.
The pjsip send notify CLI command has also been enhanced to allow
sending NOTIFY messages to a specific channel. Syntax:
pjsip send notify <option> channel <channel>
- #### channel: Add multi-tenant identifier.
tenantid has been added to channels. It can be read in
dialplan via CHANNEL(tenantid), and it can be set using
Set(CHANNEL(tenantid)=My tenant ID). In pjsip.conf, it is recommended to
use the new tenantid option for pjsip endpoints (e.g., tenantid=My
tenant ID) so that it will show up in Newchannel events. You can set it
like any other channel variable using set_var in pjsip.conf as well, but
note that this will NOT show up in Newchannel events. Tenant ID is also
available in CDR and can be accessed with CDR(tenantid). The peer tenant
ID can also be accessed with CDR(peertenantid). CEL includes tenant ID
as well if it has been set.
### Upgrade Notes:
- #### channel: Add multi-tenant identifier.
A new versioned struct (ast_channel_initializers) has been
added that gets passed to __ast_channel_alloc_ap. The new function
ast_channel_alloc_with_initializers should be used when creating
channels that require the use of this struct. Currently the only value
in the struct is for tenantid, but now more fields can be added to the
struct as necessary rather than the __ast_channel_alloc_ap function. A
new option (tenantid) has been added to endpoints in pjsip.conf as well.
CEL has had its version bumped to include tenant ID.
### Commit Authors:
- Ben Ford: (1)
- George Joseph: (4)
- Jean-Denis Girard: (1)
- Mike Bradeen: (1)
- Sean Bright: (1)
## Issue and Commit Detail:
### Closed Issues:
- !GHSA-v428-g3cw-7hv9: A malformed Contact or Record-Route URI in an incoming SIP request can cause Asterisk to crash when res_resolver_unbound is used
- 740: [new-feature]: Add multi-tenant identifier to chan_pjsip
- 799: [improvement]: Add PJSIPNOTIFY dialplan application
- 831: [bug]: app_voicemail ODBC
- 845: [bug]: Buffer overflow in handling of security mechanisms in res_pjsip
- 854: [bug]: wrong properties in stir_shaken.conf.sample
### Commits By Author:
- #### Ben Ford (1):
- channel: Add multi-tenant identifier.
- #### George Joseph (4):
- res_resolver_unbound: Test for NULL ub_result in unbound_resolver_callback
- manager.c: Fix FRACK when doing CoreShowChannelMap in DEVMODE
- stir_shaken.conf.sample: Fix bad references to private_key_path
- security_agreements.c: Refactor the to_str functions and fix a few other bugs
- #### Jean-Denis Girard (1):
- app_voicemail: Fix sql insert mismatch caused by cherry-pick
- #### Mike Bradeen (1):
- res_pjsip_notify: add dialplan application
- #### Sean Bright (1):
- alembic: Make 'revises' header comment match reality.
### Commit List:
- app_voicemail: Fix sql insert mismatch caused by cherry-pick
- security_agreements.c: Refactor the to_str functions and fix a few other bugs
- stir_shaken.conf.sample: Fix bad references to private_key_path
- alembic: Make 'revises' header comment match reality.
- res_pjsip_notify: add dialplan application
- manager.c: Fix FRACK when doing CoreShowChannelMap in DEVMODE
- channel: Add multi-tenant identifier.
- res_resolver_unbound: Test for NULL ub_result in unbound_resolver_callback
### Commit Details:
#### app_voicemail: Fix sql insert mismatch caused by cherry-pick
Author: Jean-Denis Girard
Date: 2024-08-07
When commit e8c9cb80 was cherry-picked in from master, the
fact that the 20 and 18 branches still had the old "macrocontext"
column wasn't taken into account so the number of named parameters
didn't match the number of '?' placeholders. They do now.
We also now use ast_asprintf to create the full mailbox query SQL
statement instead of trying to calculate the proper length ourselves.
Resolves: #831
#### security_agreements.c: Refactor the to_str functions and fix a few other bugs
Author: George Joseph
Date: 2024-08-17
* A static array of security mechanism type names was created.
* ast_sip_str_to_security_mechanism_type() was refactored to do
a lookup in the new array instead of using fixed "if/else if"
statments.
* security_mechanism_to_str() and ast_sip_security_mechanisms_to_str()
were refactored to use ast_str instead of a fixed length buffer
to store the result.
* ast_sip_security_mechanism_type_to_str was removed in favor of
just referencing the new type name array. Despite starting with
"ast_sip_", it was a static function so removing it doesn't affect
ABI.
* Speaking of "ast_sip_", several other static functions that
started with "ast_sip_" were renamed to avoid confusion about
their public availability.
* A few VECTOR free loops were replaced with AST_VECTOR_RESET().
* Fixed a meomry leak in pjsip_configuration.c endpoint_destructor
caused by not calling ast_sip_security_mechanisms_vector_destroy().
* Fixed a memory leak in res_pjsip_outbound_registration.c
add_security_headers() caused by not specifying OBJ_NODATA in
an ao2_callback.
* Fixed a few ao2_callback return code misuses.
Resolves: #845
#### stir_shaken.conf.sample: Fix bad references to private_key_path
Author: George Joseph
Date: 2024-08-22
They should be private_key_file.
Resolves: #854
#### alembic: Make 'revises' header comment match reality.
Author: Sean Bright
Date: 2024-08-17
#### res_pjsip_notify: add dialplan application
Author: Mike Bradeen
Date: 2024-07-09
Add dialplan application PJSIPNOTIFY to send either pre-configured
NOTIFY messages from pjsip_notify.conf or with headers defined in
dialplan.
Also adds the ability to send pre-configured NOTIFY commands to a
channel via the CLI.
Resolves: #799
UserNote: A new dialplan application PJSIPNotify is now available
which can send SIP NOTIFY requests from the dialplan.
The pjsip send notify CLI command has also been enhanced to allow
sending NOTIFY messages to a specific channel. Syntax:
pjsip send notify <option> channel <channel>
#### manager.c: Fix FRACK when doing CoreShowChannelMap in DEVMODE
Author: George Joseph
Date: 2024-08-08
If you run an AMI CoreShowChannelMap on a channel that isn't in a
bridge and you're in DEVMODE, you can get a FRACK because the
bridge id is empty. We now simply return an empty list for that
request.
#### channel: Add multi-tenant identifier.
Author: Ben Ford
Date: 2024-05-21
This patch introduces a new identifier for channels: tenantid. It's
a stringfield on the channel that can be used for general purposes. It
will be inherited by other channels the same way that linkedid is.
You can set tenantid in a few ways. The first is to set it in the
dialplan with the Set and CHANNEL functions:
exten => example,1,Set(CHANNEL(tenantid)=My tenant ID)
It can also be accessed via CHANNEL:
exten => example,2,NoOp(CHANNEL(tenantid))
Another method is to use the new tenantid option for pjsip endpoints in
pjsip.conf:
[my_endpoint]
type=endpoint
tenantid=My tenant ID
This is considered the best approach since you will be able to see the
tenant ID as early as the Newchannel event.
It can also be set using set_var in pjsip.conf on the endpoint like
setting other channel variable:
set_var=CHANNEL(tenantid)=My tenant ID
Note that set_var will not show tenant ID on the Newchannel event,
however.
Tenant ID has also been added to CDR. It's read-only and can be accessed
via CDR(tenantid). You can also get the tenant ID of the last channel
communicated with via CDR(peertenantid).
Tenant ID will also show up in CEL records if it has been set, and the
version number has been bumped accordingly.
Fixes: #740
UserNote: tenantid has been added to channels. It can be read in
dialplan via CHANNEL(tenantid), and it can be set using
Set(CHANNEL(tenantid)=My tenant ID). In pjsip.conf, it is recommended to
use the new tenantid option for pjsip endpoints (e.g., tenantid=My
tenant ID) so that it will show up in Newchannel events. You can set it
like any other channel variable using set_var in pjsip.conf as well, but
note that this will NOT show up in Newchannel events. Tenant ID is also
available in CDR and can be accessed with CDR(tenantid). The peer tenant
ID can also be accessed with CDR(peertenantid). CEL includes tenant ID
as well if it has been set.
UpgradeNote: A new versioned struct (ast_channel_initializers) has been
added that gets passed to __ast_channel_alloc_ap. The new function
ast_channel_alloc_with_initializers should be used when creating
channels that require the use of this struct. Currently the only value
in the struct is for tenantid, but now more fields can be added to the
struct as necessary rather than the __ast_channel_alloc_ap function. A
new option (tenantid) has been added to endpoints in pjsip.conf as well.
CEL has had its version bumped to include tenant ID.
#### res_resolver_unbound: Test for NULL ub_result in unbound_resolver_callback
Author: George Joseph
Date: 2024-08-12
The ub_result pointer passed to unbound_resolver_callback by
libunbound can be NULL if the query was for something malformed
like `.1` or `[.1]`. If it is, we now set a 'ns_r_formerr' result
and return instead of crashing with a SEGV. This causes pjproject
to simply cancel the transaction with a "No answer record in the DNS
response" error. The existing "off nominal" unit test was also
updated to check this condition.
Although not necessary for this fix, we also made
ast_dns_resolver_completed() tolerant of a NULL result.
Resolves: GHSA-v428-g3cw-7hv9
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