Bug 1128157 – CVE-2014-4345 krb5: buffer overrun in kadmind with LDAP backend (MITKRB5-SA-2014-001)

Bugzilla will be upgraded to version 5.0 on a still to be determined date in the near future. The original upgrade date has been delayed.

Bug 1128157 - (CVE-2014-4345) CVE-2014-4345 krb5: buffer overrun in kadmind with LDAP backend (MITKRB5-SA-2014-001)

Summary:	CVE-2014-4345 krb5: buffer overrun in kadmind with LDAP backend (MITKRB5-SA-2...

Status:	CLOSED ERRATA

Aliases:	CVE-2014-4345

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

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

URL:
Whiteboard:	impact=moderate,public=20140807,repor...
Keywords:	Security

Depends On:	1121510 1130950 1132785
Blocks:	1101912 1121513 1128161
	Show dependency tree / graph

Reported:	2014-08-08 08:53 EDT by Vasyl Kaigorodov
Modified:	2018-10-25 15:24 EDT (History)
CC List:	9 users (show)

See Also:
Fixed In Version:	krb5 1.11.6, krb5 1.12.2
Doc Type:	Bug Fix
Doc Text:	A buffer overflow was found in the KADM5 administration server (kadmind) when it was used with an LDAP back end for the KDC database. A remote, authenticated attacker could potentially use this flaw to execute arbitrary code on the system running kadmind.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2015-03-06 05:12:10 EST
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

Attachments	(Terms of Use)
Add an attachment (proposed patch, testcase, etc.)

External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2014:1255	normal	SHIPPED_LIVE	Moderate: krb5 security update	2014-09-17 10:48:15 EDT
Red Hat Product Errata	RHSA-2014:1389	normal	SHIPPED_LIVE	Moderate: krb5 security and bug fix update	2014-10-13 21:27:10 EDT
Red Hat Product Errata	RHSA-2015:0439	normal	SHIPPED_LIVE	Moderate: krb5 security, bug fix and enhancement update	2015-03-05 09:38:14 EST

Groups: None (edit)

Description Vasyl Kaigorodov 2014-08-08 08:53:03 EDT

Upstream released advisory [1] which fixes out-of-bounds write (buffer overflow)
Summary from the advisory:
...
In MIT krb5, when kadmind is configured to use LDAP for the KDC
database, an authenticated remote attacker can cause it to perform an
out-of-bounds write (buffer overflow).  This is not a protocol
vulnerability.  Using LDAP for the KDC database is a non-default
configuration for the KDC.
...

Further technical details and patches are available on the advisory page as well.


External References:

http://web.mit.edu/Kerberos/advisories/MITKRB5-SA-2014-001.txt

Comment 1 Fedora Update System 2014-08-14 22:45:54 EDT

krb5-1.11.5-11.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2014-08-26 21:34:49 EDT

krb5-1.11.3-25.fc19 has been pushed to the Fedora 19 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Martin Prpič 2014-09-09 05:47:28 EDT

IssueDescription:

A buffer overflow was found in the KADM5 administration server (kadmind) when it was used with an LDAP back end for the KDC database. A remote, authenticated attacker could potentially use this flaw to execute arbitrary code on the system running kadmind.

Comment 7 errata-xmlrpc 2014-09-17 06:48:39 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 5

Via RHSA-2014:1255 https://rhn.redhat.com/errata/RHSA-2014-1255.html

Comment 8 errata-xmlrpc 2014-10-14 04:11:16 EDT

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2014:1389 https://rhn.redhat.com/errata/RHSA-2014-1389.html

Comment 9 Huzaifa S. Sidhpurwala 2014-10-14 05:29:20 EDT

Statement:

(none)

Comment 10 errata-xmlrpc 2015-03-05 05:01:22 EST

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2015:0439 https://rhn.redhat.com/errata/RHSA-2015-0439.html

Note You need to log in before you can comment on or make changes to this bug.