Bug 990180 - (CVE-2013-4936) CVE-2013-4936 wireshark: DoS (NULL pointer dereference, crash) in the PROFINET Real-Time dissector (wnpa-sec-2013-53)
CVE-2013-4936 wireshark: DoS (NULL pointer dereference, crash) in the PROFINE...
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: 979246 990202 994914 994924
Blocks: 974906 990216
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Reported: 2013-07-30 10:08 EDT by Jan Lieskovsky
Modified: 2016-03-04 07:40 EST (History)
5 users (show)

See Also:
Fixed In Version: Wireshark 1.10.1
Doc Type: Bug Fix
Doc Text:
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Last Closed: 2014-03-13 01:59:49 EDT
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RHEL 7.3 requirements from Atomic Host:
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Description Jan Lieskovsky 2013-07-30 10:08:36 EDT
Common Vulnerabilities and Exposures assigned an identifier CVE-2013-4936 to the following vulnerability:

The dissect_smtp function in epan/dissectors/packet-smtp.c in the PROFINET Real-Time dissector in Wireshark 1.10.x before 1.10.1 does not initialize certain structure members, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted packet.

[1] http://anonsvn.wireshark.org/viewvc/trunk/epan/dissectors/packet-smtp.c?r1=50472&r2=50471&pathrev=50472
[2] http://anonsvn.wireshark.org/viewvc?view=revision&revision=50472
[3] http://www.wireshark.org/docs/relnotes/wireshark-1.10.1.html
[4] https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=8904
[5] https://www.wireshark.org/security/wnpa-sec-2013-53.html
Comment 1 Huzaifa S. Sidhpurwala 2013-08-08 04:27:24 EDT
The patches mentioned in comment #0 are not correct. The correct patch which corrects this flaw is:

Comment 2 Huzaifa S. Sidhpurwala 2013-08-08 04:37:06 EDT

This issue does not affect the version of wireshark as shipped with Red Hat Enterprise Linux 5.
Comment 5 errata-xmlrpc 2013-11-21 02:33:20 EST
This issue has been addressed in following products:

  Red Hat Enterprise Linux 6

Via RHSA-2013:1569 https://rhn.redhat.com/errata/RHSA-2013-1569.html
Comment 6 Peter Hatina 2014-03-12 07:45:58 EDT
(In reply to Huzaifa S. Sidhpurwala from comment #2)
> Statement:
> This issue affects the version of wireshark as shipped with Red Hat
> Enterprise Linux 5. The Red Hat Security Response Team has rated this issue
> as having low security impact, a future update may address this flaw.

Using wireshark-1.0.15-5.el5

Having looked at the upstream bug report, I can't make tshark crash using provided capture file. The code doesn't dereference mentioned pointers.
IsDFP_Frame() isn't even present.

Can you, please, investigate this flaw again?

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