Bug 1543582 (CVE-2018-6836)

Summary:	CVE-2018-6836 wireshark: free operation on an uninitialized memory address in wiretap/netmon.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	denis, huzaifas, lemenkov, mruprich, msehnout, phatina
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:39:33 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:	1543583
Bug Blocks:

Description Laura Pardo 2018-02-08 18:37:49 UTC

The netmonrec_comment_destroy function in wiretap/netmon.c in Wireshark through 2.4.4 performs a free operation on an uninitialized memory address, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.

References:
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14397

Patch:
https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=28960d79cca262ac6b974f339697b299a1e28fef

Comment 1 Laura Pardo 2018-02-08 18:38:26 UTC

Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1543583]