Bug 1319616 – CVE-2016-3119 krb5: null pointer dereference in kadmin

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Bug 1319616 - (CVE-2016-3119) CVE-2016-3119 krb5: null pointer dereference in kadmin

Summary:	CVE-2016-3119 krb5: null pointer dereference in kadmin

Status:	NEW

Aliases:	CVE-2016-3119

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20160314,reported=2...
Keywords:	Security

Depends On:	1319617 1339562
Blocks:	1319623 1323912
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Reported:	2016-03-21 04:35 EDT by Andrej Nemec
Modified:	2018-03-29 17:59 EDT (History)
CC List:	19 users (show)

See Also:
Fixed In Version:
Doc Type:	If docs needed, set a value
Doc Text:	A NULL pointer dereference flaw was found in MIT Kerberos kadmind service. An authenticated attacker with permission to modify a principal entry could use this flaw to cause kadmind to dereference a null pointer and crash by supplying an empty DB argument to the modify_principal command, if kadmind was configured to use the LDAP KDB module.
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Regression:	---
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RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2016:2591	normal	SHIPPED_LIVE	Low: krb5 security, bug fix, and enhancement update	2016-11-03 08:10:29 EDT

Groups: None (edit)

Description Andrej Nemec 2016-03-21 04:35:45 EDT

It was reported that in all versions of MIT krb5, an authenticated attacker with permission to modify a principal entry can cause kadmind to dereference a null pointer by supplying an empty DB argument to the modify_principal command, if kadmind is configured to use the LDAP KDB module.

Upstream patch:

https://github.com/krb5/krb5/commit/08c642c09c38a9c6454ab43a9b53b2a89b9eef99

Comment 1 Andrej Nemec 2016-03-21 04:36:21 EDT

Created krb5 tracking bugs for this issue:

Affects: fedora-all [bug 1319617]

Comment 3 errata-xmlrpc 2016-11-03 16:24:55 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:2591 https://rhn.redhat.com/errata/RHSA-2016-2591.html

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