Bug 1646981 (CVE-2018-18956)

Summary:	CVE-2018-18956 suricata: Segmentation fault in the ProcessMimeEntity function
Product:	[Other] Security Response	Reporter:	Andrej Nemec <anemec>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	athmanem, jmlich83, jtfas90, sgrubb
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:	2019-06-10 10:42:20 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:	1646983, 1646984
Bug Blocks:

Description Andrej Nemec 2018-11-06 13:07:22 UTC

The ProcessMimeEntity function in util-decode-mime.c in Suricata 4.x through 4.0.5 allows remote attackers to cause a denial of service (segfault and daemon crash) via crafted input to the SMTP parser.

References:

https://lists.openinfosecfoundation.org/pipermail/oisf-users/2018-October/016227.html
https://redmine.openinfosecfoundation.org/issues/2658#change-10374

Comment 1 Andrej Nemec 2018-11-06 13:07:55 UTC

Created suricata tracking bugs for this issue:

Affects: epel-7 [bug 1646984]
Affects: fedora-all [bug 1646983]

Comment 2 Product Security DevOps Team 2019-06-10 10:42:20 UTC

This CVE Bugzilla entry is for community support informational purposes only as it does not affect a package in a commercially supported Red Hat product. Refer to the dependent bugs for status of those individual community products.