Bug 2039009 (CVE-2021-4184, wnpa-sec-2021-18)

Summary:	CVE-2021-4184 wireshark: BitTorrent DHT dissector infinite loop
Product:	[Other] Security Response	Reporter:	Guilherme de Almeida Suckevicz <gsuckevi>
Component:	vulnerability	Assignee:	Nobody <nobody>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	alekcejk, denis, huzaifas, lemenkov, mruprich, msehnout, peter, rvokal, sergey.avseyev
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	wireshark 3.6.1, wireshark 3.4.11	Doc Type:	If docs needed, set a value
Doc Text:	An infinite-loop flaw was found in Wireshark's DHT dissector module. This flaw allows an attacker with local network access to pass specially crafted capture files, causing an application to halt, crash or go into an infinite loop.	Story Points:	---
Clone Of:		Environment:
Last Closed:		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:	2039010, 2039200
Bug Blocks:	2039018

Description Guilherme de Almeida Suckevicz 2022-01-10 17:56:37 UTC

Infinite loop in the BitTorrent DHT dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file.

Reference:
https://www.wireshark.org/security/wnpa-sec-2021-18.html

Comment 1 Guilherme de Almeida Suckevicz 2022-01-10 17:57:14 UTC

Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 2039010]