Bug 1710839 (CVE-2019-12098)

Summary:	CVE-2019-12098 heimdal: man-in-the-middle attack in function krb5_init_creds_step in lib/krb5/init_creds_pw.c
Product:	[Other] Security Response	Reporter:	Dhananjay Arunesh <darunesh>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED UPSTREAM	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	abo, echevemaster, jorti, ktdreyer
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 10:55:35 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:	1710841, 1710843
Bug Blocks:

Description Dhananjay Arunesh 2019-05-16 12:13:07 UTC

In the client side of Heimdal before 7.6.0, failure to verify anonymous PKINIT PA-PKINIT-KX key exchange permits a man-in-the-middle attack. This issue is in krb5_init_creds_step in lib/krb5/init_creds_pw.c.

Reference:
http://www.h5l.org/pipermail/heimdal-announce/2019-May/000009.html

Upstream commit:
https://github.com/heimdal/heimdal/commit/2f7f3d9960aa6ea21358bdf3687cee5149aa35cf

Comment 1 Dhananjay Arunesh 2019-05-16 12:13:53 UTC

Created heimdal tracking bugs for this issue:

Affects: fedora-all [bug 1710841]


Created heimdall tracking bugs for this issue:

Affects: fedora-all [bug 1710842]

Comment 2 Dhananjay Arunesh 2019-05-16 12:14:13 UTC

Created heimdal tracking bugs for this issue:

Affects: epel-all [bug 1710843]

Comment 3 Product Security DevOps Team 2019-06-10 10:55:35 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.