Bug 1839874 (CVE-2020-13164)

Summary: CVE-2020-13164 wireshark: NFS dissector crash (wnpa-sec-2020-08)
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, peter, rvokal, sergey.avseyev
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: wireshark 3.2.4, wireshark 3.0.11, wireshark 2.6.17 Doc Type: If docs needed, set a value
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2021-06-29 20:31:02 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1839875, 1839938, 1839939    
Bug Blocks: 1839876    

Description Guilherme de Almeida Suckevicz 2020-05-25 19:44:50 UTC
In Wireshark 3.2.0 to 3.2.3, 3.0.0 to 3.0.10, and 2.6.0 to 2.6.16, the NFS dissector could crash. This was addressed in epan/dissectors/packet-nfs.c by preventing excessive recursion, such as for a cycle in the directory graph on a filesystem.

References:
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16476
https://www.wireshark.org/security/wnpa-sec-2020-08.html

Upstream commit:
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=e6e98eab8e5e0bbc982cfdc808f2469d7cab6c5a

Comment 1 Guilherme de Almeida Suckevicz 2020-05-25 19:45:09 UTC
Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1839875]