Bug 1868885 (CVE-2020-17498)

Summary:	CVE-2020-17498 wireshark: Kafka protocol dissector could crash (wnpa-sec-2020-10)
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	denis, huzaifas, lemenkov, mruprich, msehnout, peter, rvokal, sergey.avseyev
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	wireshark 3.2.6	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2020-08-18 21:15:32 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:	1868886
Bug Blocks:	1868887

Description Dhananjay Arunesh 2020-08-14 06:48:53 UTC

In Wireshark 3.2.0 to 3.2.5, the Kafka protocol dissector could crash. This was addressed in epan/dissectors/packet-kafka.c by avoiding a double free during LZ4 decompression.

References:
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16672
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=76afda963de4f0b9be24f2d8e873990a5cbf221b

Comment 1 Dhananjay Arunesh 2020-08-14 06:49:30 UTC

Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1868886]

Comment 3 Dhananjay Arunesh 2020-08-14 06:51:22 UTC

External References:

https://www.wireshark.org/security/wnpa-sec-2020-10.html

Comment 4 Todd Cullum 2020-08-18 17:16:18 UTC

Statement:

Wireshark as shipped with Red Hat Enterprise Linux 5, 6, 7, and 8 is not affected because the vulnerable code was committed in newer versions of the package than those shipped.

Comment 5 Todd Cullum 2020-08-18 17:27:59 UTC

Flaw Summary:

A double-free in /epan/dissectors/packet-kafka.c's lz4 decompression functionality allowed for a crash of wireshark when processing a specially crafted packet. This could result in a temporary denial of service.

Comment 6 Product Security DevOps Team 2020-08-18 21:15:32 UTC

This bug is now closed. Further updates for individual products will be reflected on the CVE page(s):

https://access.redhat.com/security/cve/cve-2020-17498