Bug 1306617 (CVE-2016-2232) - CVE-2016-2232 asterisk: remote crash vulnerability when receiving UDPTL FAX data (AST-2016-003)
Summary: CVE-2016-2232 asterisk: remote crash vulnerability when receiving UDPTL FAX d...
Keywords:
Status: CLOSED UPSTREAM
Alias: CVE-2016-2232
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1306619 1306620
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-02-11 13:06 UTC by Martin Prpič
Modified: 2021-02-17 04:20 UTC (History)
5 users (show)

Fixed In Version: asterisk 11.21.1, asterisk 13.7.1
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-07-12 13:04:03 UTC
Embargoed:

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Description Martin Prpič 2016-02-11 13:06:02 UTC 
The following flaw was found in Asterisk:

If no UDPTL packets are lost there is no problem. However, a lost packet causes Asterisk to use the available error correcting redundancy packets. If those redundancy packets have zero length then Asterisk uses an uninitialized buffer pointer and length value which can cause invalid memory accesses later when the packet is copied.

External References:

http://downloads.asterisk.org/pub/security/AST-2016-003.html
Comment 1 Martin Prpič 2016-02-11 13:09:33 UTC 
Created asterisk tracking bugs for this issue:

Affects: fedora-all [bug 1306619]
Affects: epel-6 [bug 1306620]
Comment 2 Jared Smith 2016-02-12 15:28:23 UTC 
This has been corrected in Rawhide with the 13.7.2 release, and also pushed to the Fedora 23 and Fedora 22 testing-updates repositories.

I'm working on updating the EPEL 6 package now.
Comment 3 Andrej Nemec 2016-02-16 08:12:35 UTC 
CVE assignment information from upstream:

http://downloads.asterisk.org/pub/security/AST-2016-003.html
Comment 4 Product Security DevOps Team 2019-07-12 13:04:03 UTC 
ARRAY(0x55ab819dec60)
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