Bug 1775149 (CVE-2019-16319)

Summary: CVE-2019-16319 wireshark: gryphon dissector infinite loop (wnpa-sec-2019-21)
Product: [Other] Security Response Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED WONTFIX QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: unspecifiedCC: denis, huzaifas, lemenkov, mruprich, msehnout, phatina, rvokal, sergey.avseyev, tcullum
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: wireshark 3.0.4, wireshark 2.6.11 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-06-29 20:21:18 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: 1775366, 1775867, 1775868    
Bug Blocks: 1775362    

Description Guilherme de Almeida Suckevicz 2019-11-21 13:35:50 UTC 
In Wireshark 3.0.0 to 3.0.3 and 2.6.0 to 2.6.10, the Gryphon dissector could go into an infinite loop. This was addressed in plugins/epan/gryphon/packet-gryphon.c by checking for a message length of zero.

References:
https://www.wireshark.org/security/wnpa-sec-2019-21.html
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16020

Upstream commit:
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=02ddd49885c6a09e936a76aceb726ed06539704a
Comment 1 Guilherme de Almeida Suckevicz 2019-11-21 19:40:09 UTC 
Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1775366]
Comment 2 Huzaifa S. Sidhpurwala 2019-11-23 03:16:40 UTC 
External References:

https://www.wireshark.org/security/wnpa-sec-2019-21.html