Bug 1607329 (CVE-2018-14367)

Summary: CVE-2018-14367 wireshark: CoAP dissector infinite loop (wnpa-sec-2018-42)
Product: [Other] Security Response Reporter: Andrej Nemec <anemec>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED NOTABUG QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: denis, huzaifas, lemenkov, mruprich, msehnout, phatina, rvokal
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: wireshark 2.6.2, wireshark 2.4.8, wireshark 2.2.16 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2018-08-07 19:01:29 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On: 1607333, 1607334    
Bug Blocks: 1607335    

Description Andrej Nemec 2018-07-23 09:54:20 UTC 
It was found that CoAP dissector could crash by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file.

Upstream bug(s):

https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14966

External References:

https://www.wireshark.org/security/wnpa-sec-2018-42.html
Comment 1 Andrej Nemec 2018-07-23 09:57:12 UTC 
Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1607334]
Comment 3 Pedro Yóssis Silva Barbosa 2018-08-07 19:01:29 UTC 
The wireshark shipped in Red Hat Enterprise Linux 6 and 7 do not have the "Allocate information for upper layers" functionality implementation in the dissect_coap function (epan/dissectors/packet-coap.c file).
Comment 4 Pedro Yóssis Silva Barbosa 2018-08-07 19:01:39 UTC 
Statement:

This issue did not affect the versions of wireshark as shipped with Red Hat Enterprise Linux 6 and 7 (versions 1.8.10 and 1.10.14, respectively).