Bug 1174546 (CVE-2014-5354)

Summary:	CVE-2014-5354 krb5: NULL pointer dereference when using keyless entries
Product:	[Other] Security Response	Reporter:	Murray McAllister <mmcallis>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	dpal, jplans, jrusnack, kerberos-dev-list, nalin, nathaniel, pkis, rmainz, slawomir
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-02-17 13:02:20 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:	1174985, 1176002
Bug Blocks:	1174549

Description Murray McAllister 2014-12-16 02:39:31 UTC

If kadmind were used with an LDAP back end for the KDC database, a remote, authenticated attacker could crash kadmind by inserting a principal entry with no long term keys.

It is reported that versions prior to 1.12 are not affected.

Upstream fix:

https://github.com/krb5/krb5/commit/04038bf3633c4b909b5ded3072dc88c8c419bf16

Reference:

https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=773228

Comment 3 Huzaifa S. Sidhpurwala 2014-12-19 05:15:30 UTC

Statement:

Not vulnerable. This issue does not affect the version of krb5 package as shipped with Red Hat Enterprise Linux 5, 6 and 7.

Comment 5 Huzaifa S. Sidhpurwala 2014-12-19 05:20:09 UTC

Created krb5 tracking bugs for this issue:

Affects: fedora-21 [bug 1176002]