Bug 928550 (CVE-2013-2685) - CVE-2013-2685 asterisk: buffer overflow via SIP SDP header (AST-2013-001)
Summary: CVE-2013-2685 asterisk: buffer overflow via SIP SDP header (AST-2013-001)
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2013-2685
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 928552
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-03-27 22:02 UTC by Vincent Danen
Modified: 2021-02-17 07:52 UTC (History)
4 users (show)

Fixed In Version: asterisk 11.2.2
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2013-04-10 22:37:57 UTC
Embargoed:


Attachments (Terms of Use)

Description Vincent Danen 2013-03-27 22:02:30 UTC
A buffer overflow flaw was found in how Asterisk parsed SIP SDP headers:

The format attribute resource for h264 video performs an
unsafe read against a media attribute when parsing the SDP.
The vulnerable parameter can be received as strings of an
arbitrary length and Asterisk attempts to read them into
limited buffer spaces without applying a limit to the
number of characters read. If a message is formed
improperly, this could lead to an attacker being able to
execute arbitrary code remotely.

This affects the 11.x series of Asterisk and is corrected in version
11.2.2.  Earlier versions are not affected.


External References:

http://downloads.asterisk.org/pub/security/AST-2013-001.html

Comment 1 Vincent Danen 2013-03-27 22:12:29 UTC
Created asterisk tracking bugs for this issue

Affects: fedora-18 [bug 928552]

Comment 2 Fedora Update System 2013-04-07 00:28:27 UTC
asterisk-11.2.2-1.fc18 has been pushed to the Fedora 18 stable repository.  If problems still persist, please make note of it in this bug report.


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