Bug 1581768 (CVE-2018-11356)

Summary:	CVE-2018-11356 wireshark: DNS dissector crash in packet-dns.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
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, phatina, rvokal
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	wireshark 2.6.1, wireshark 2.4.7, wireshark 2.2.15	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-06-01 15:55:32 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:	1585242
Bug Blocks:	1581792

Description Laura Pardo 2018-05-23 15:14:53 UTC

A flaw was found in Wireshark 2.6.0, 2.4.0 to 2.4.6, and 2.2.0 to 2.2.14, the DNS dissector could crash. It may be possible to make Wireshark crash by injecting a malformed packet onto the wire or by convincing someone to read a malformed packet trace file. This was addressed in epan/dissectors/packet-dns.c by avoiding a NULL pointer dereference for an empty name in an SRV record.


References:
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14681 	
https://www.wireshark.org/security/wnpa-sec-2018-29.html

Upstream patch:
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=4425716ddba99374749bd033d9bc0f4add2fb973

Comment 3 Richard Maciel Costa 2018-06-01 15:42:09 UTC

Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1585242]