Bug 670567 (CVE-2011-0283)

Summary:	CVE-2011-0283 krb5: uninitialized pointer use in krb5kdc leads to KDC crash
Product:	[Other] Security Response	Reporter:	Vincent Danen <vdanen>
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, nalin, security-response-team
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
URL:	http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-002.txt
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2013-11-05 16:54:35 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:	669423, 676126
Bug Blocks:

Description Vincent Danen 2011-01-18 17:05:08 UTC

Changes in the KDC network code in the krb5-1.9 release introduced a bug that allows a null pointer dereference, which would cause the KDC to crash.  Any request packet that is sufficiently malformed that the KDC would not generate a response packet can trigger this bug.

This flaw will be addressed as part of MITKRB5-SA-2011-002.  It does not affect any version of Kerberos prior to 1.9.

Comment 2 Vincent Danen 2011-02-08 21:26:27 UTC

This issue is now public:

http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2011-002.txt

Statement:

This issue did not affect the versions of krb5 as shipped with Red Hat Enterprise Linux 3, 4, 5 or 6.

Comment 3 Vincent Danen 2011-02-08 21:31:26 UTC

Created krb5 tracking bugs for this issue

Affects: fedora-rawhide [bug 676126]