Bug 1607329 (CVE-2018-14367) - CVE-2018-14367 wireshark: CoAP dissector infinite loop (wnpa-sec-2018-42)
Summary: CVE-2018-14367 wireshark: CoAP dissector infinite loop (wnpa-sec-2018-42)
Keywords:
Status: CLOSED NOTABUG
Alias: CVE-2018-14367
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1607333 1607334
Blocks: 1607335
TreeView+ depends on / blocked
 
Reported: 2018-07-23 09:54 UTC by Andrej Nemec
Modified: 2021-02-16 23:55 UTC (History)
7 users (show)

Fixed In Version: wireshark 2.6.2, wireshark 2.4.8, wireshark 2.2.16
Clone Of:
Environment:
Last Closed: 2018-08-07 19:01:29 UTC
Embargoed:

Attachments (Terms of Use)

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).
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