Bug 1530893 (CVE-2017-17997)

Summary:	CVE-2017-17997 wireshark: Misuse of NULL pointer in MRDISC dissector
Product:	[Other] Security Response	Reporter:	Sam Fowler <sfowler>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
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 03:36:07 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:	1530895
Bug Blocks:

Description Sam Fowler 2018-01-04 05:12:11 UTC

In Wireshark 2.2.11 and before, the MRDISC dissector misuses a NULL pointer. This was addressed in epan/dissectors/packet-mrdisc.c by validating an IPv4 address. This vulnerability is similar to CVE-2017-9343.

References:
https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2017-17997
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14299

Comment 1 Sam Fowler 2018-01-04 05:12:40 UTC

Created wireshark tracking bugs for this issue:

Affects: fedora-all [bug 1530895]