Bug 980895 - (CVE-2013-2222) CVE-2013-2222 libzrtpcpp: Multiple stack-based buffer overflows when processing certain ZRTP Hello packets
CVE-2013-2222 libzrtpcpp: Multiple stack-based buffer overflows when processi...
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
All Linux
low Severity low
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Assigned To: Red Hat Product Security
: Security
Depends On: 980904
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Reported: 2013-07-03 09:17 EDT by Jan Lieskovsky
Modified: 2016-03-04 06:54 EST (History)
3 users (show)

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Fixed In Version:
Doc Type: Bug Fix
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Last Closed: 2013-07-16 02:10:53 EDT
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Description Jan Lieskovsky 2013-07-03 09:17:16 EDT
Multiple stack-based buffer overflows were found in the way libzrtpcpp, a ZRTP support library for the GNU ccRTP stack, processed certain ZRTP Hello packets (ZRTP Hello packets with an overly-large value in certain fields, including the count of public keys). A remote attacker could provide a specially-crafted ZRTP packet that, when processed in an application linked against libzrtpcpp would lead to that application crash. 

[1] http://www.openwall.com/lists/oss-security/2013/06/29/1
[2] http://www.openwall.com/lists/oss-security/2013/06/30/2
[3] http://blog.azimuthsecurity.com/2013/06/attacking-crypto-phones-weaknesses-in.html

Relevant upstream patch:
[4] https://github.com/wernerd/ZRTPCPP/commit/c8617100f359b217a974938c5539a1dd8a120b0e
Comment 1 Jan Lieskovsky 2013-07-03 09:28:37 EDT
This issue affects the versions of the libzrtpcpp package, as shipped with Fedora release of 17 and 18. Please schedule an update.


This issue did NOT affect the versions of the libzrtpcpp package, as shipped with Fedora EPEL-5 and Fedora EPEL-6.
Comment 2 Jan Lieskovsky 2013-07-03 09:31:52 EDT
Created libzrtpcpp tracking bugs for this issue:

Affects: fedora-all [bug 980904]
Comment 3 Fedora Update System 2013-07-15 21:43:26 EDT
libzrtpcpp-2.3.4-1.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

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