Bug 1166675 (CVE-2014-8412)

Summary: CVE-2014-8412 asterisk: Mixed IP address families in access control lists may permit unwanted traffic [AST-2014-012]
Product: [Other] Security Response Reporter: Martin Prpič <mprpic>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED UPSTREAM QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: itamar, jeff, lmadsen, rbryant
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
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Clone Of: Environment:
Last Closed: 2019-06-08 02:36:30 UTC Type: ---
Regression: --- Mount Type: ---
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1166676, 1166677    
Bug Blocks:    

Description Martin Prpič 2014-11-21 13:06:40 UTC
The following issue was made public in the AST-2014-012 advisory [1][2]:

Many modules in Asterisk that service incoming IP traffic have ACL options
("permit" and "deny") that can be used to whitelist or blacklist address
ranges. A bug has been discovered where the address family of incoming
packets is only compared to the IP address family of the first entry in the
list of access control rules. If the source IP address for an incoming
packet is not of the same address family as the first ACL entry, that
packet bypasses all ACL rules. For ACLs whose rules are all of the same
address family, there is no issue.

Note that while the incoming packet may bypass ACL rules, the packet is
still subject to any authentication requirements that the specific
protocol employs.

This issue affects the following parts of Asterisk

* All VoIP channel drivers
* DUNDi
* Asterisk Manager Interface (AMI)

Patches for this issue are linked to in the AST-2014-012 [1][2] advisory.

References:
[1] http://downloads.asterisk.org/pub/security/AST-2014-012.pdf
[2] http://seclists.org/fulldisclosure/2014/Nov/65

Comment 1 Martin Prpič 2014-11-21 13:07:56 UTC
Created asterisk tracking bugs for this issue:

Affects: fedora-all [bug 1166676]
Affects: epel-6 [bug 1166677]

Comment 2 Product Security DevOps Team 2019-06-08 02:36:30 UTC
This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.