Bug 1697947 (CVE-2019-10894)

Summary: CVE-2019-10894 wireshark: GSS-API dissector crash (wnpa-sec-2019-14)
Product: [Other] Security Response Reporter: Marian Rehak <mrehak>
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 3.0.1, wireshark 2.6.8, wireshark 2.4.14 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-06-29 20:16:23 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: 1697948, 1710768    
Bug Blocks: 1697993    

Description Marian Rehak 2019-04-09 10:55:11 UTC 
A crash due to an assertion failure can be observed in an ASAN build of Wireshark, by feeding a malformed file to tshark ("$ ./tshark -nVxr /path/to/file").

External Referencies:
https://www.wireshark.org/security/wnpa-sec-2019-14.html

Upstream bug(s):
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=15613
Comment 1 Marian Rehak 2019-04-09 10:55:25 UTC 
Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1697948]
Comment 2 Riccardo Schirone 2019-05-15 15:15:39 UTC 
Upstream patch:
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=8cdc95842687feee32856afba8e7087396082158
Comment 4 Riccardo Schirone 2019-05-16 09:35:23 UTC 
An assertion is reachable in call_dissector_only() in epan/packet.c, which checks whether the handle passed as argument is not NULL. In debug builds, this may just crash the application, while in release builds a NULL pointer dereference, with following crash, is possible.
Comment 5 Riccardo Schirone 2019-05-16 09:35:25 UTC 
External References:

https://www.wireshark.org/security/wnpa-sec-2019-14.html