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Test ID:1.3.6.1.4.1.25623.1.0.50992
Category:Red Hat Local Security Checks
Title:RedHat Security Advisory RHSA-2003:052
Summary:Redhat Security Advisory RHSA-2003:052
Description:
The remote host is missing updates announced in
advisory RHSA-2003:052.

Kerberos is a network authentication system. The MIT Kerberos team
released an advisory describing a number of vulnerabilities that affect the
kerberos packages shipped by Red Hat.

An integer signedness error in the ASN.1 decoder before version 1.2.5
allows remote attackers to cause a denial of service via a large unsigned
data element length, which is later used as a negative value. The Common
Vulnerabilities and Exposures project has assigned the name CVE-2002-0036
to this issue.

The Key Distribution Center (KDC) before version 1.2.5 allows remote,
authenticated, attackers to cause a denial of service (crash) on KDCs
within the same realm via a certain protocol request that:

- causes a null pointer dereference (CVE-2003-0058).

- causes the KDC to corrupt its heap (CVE-2003-0082).

A vulnerability in Kerberos before version 1.2.3 allows users from
one realm to impersonate users in other realms that have the same
inter-realm keys (CVE-2003-0059).

The MIT advisory for these issues also mentions format string
vulnerabilities in the logging routines (CVE-2003-0060). Previous versions
of the kerberos packages from Red Hat already contain fixes for this issue.

Vulnerabilities have been found in the implementation of support for
triple-DES keys in the implementation of the Kerberos IV authentication
protocol included in MIT Kerberos (CVE-2003-0139).

Vulnerabilities have been found in the Kerberos IV authentication protocol
which allow an attacker with knowledge of a cross-realm key that is shared
with another realm to impersonate any principal in that realm to any
service in that realm. This vulnerability can only be closed by disabling
cross-realm authentication in Kerberos IV (CVE-2003-0138).

Vulnerabilities have been found in the RPC library used by the kadmin
service in Kerberos 5. A faulty length check in the RPC library exposes
kadmind to an integer overflow which can be used to crash kadmind
(CVE-2003-0028).

All users of Kerberos are advised to upgrade to these errata packages,
which disable cross-realm authentication by default for Kerberos IV and
which contain backported patches to correct these issues.

Solution:
Please note that this update is available via
Red Hat Network. To use Red Hat Network, launch the Red
Hat Update Agent with the following command: up2date

http://rhn.redhat.com/errata/RHSA-2003-052.html
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-005-buf.txt
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-004-krb4.txt
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-003-xdr.txt
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2003-001-multiple.txt

Risk factor : High
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2003-0028
Bugtraq: 20030319 EEYE: XDR Integer Overflow (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=104810574423662&w=2
Bugtraq: 20030331 GLSA: dietlibc (200303-29) (Google Search)
http://www.securityfocus.com/archive/1/archive/1/316931/30/25250/threaded
Bugtraq: 20030331 GLSA: krb5 & mit-krb5 (200303-28) (Google Search)
http://www.securityfocus.com/archive/1/archive/1/316960/30/25250/threaded
Bugtraq: 20030319 RE: EEYE: XDR Integer Overflow (Google Search)
http://www.securityfocus.com/archive/1/archive/1/315638/30/25430/threaded
http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0140.html
eEye Security Advisory: AD20030318
http://www.eeye.com/html/Research/Advisories/AD20030318.html
http://www.cert.org/advisories/CA-2003-10.html
CERT/CC vulnerability note: VU#516825
http://www.kb.cert.org/vuls/id/516825
Debian Security Information: DSA-282 (Google Search)
http://www.debian.org/security/2003/dsa-282
http://www.redhat.com/support/errata/RHSA-2003-051.html
http://www.redhat.com/support/errata/RHSA-2003-052.html
http://www.redhat.com/support/errata/RHSA-2003-089.html
http://www.redhat.com/support/errata/RHSA-2003-091.html
Caldera Security Advisory: CSSA-2003-013.0
FreeBSD Security Advisory: FreeBSD-SA-03:05
Bugtraq: 20030319 MITKRB5-SA-2003-003: faulty length checks in xdrmem_getbytes (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=104811415301340&w=2
En Garde Linux Advisory: ESA-20030321-010
http://www.linuxsecurity.com/advisories/engarde_advisory-3024.html
Debian Security Information: DSA-266 (Google Search)
http://www.debian.org/security/2003/dsa-266
Debian Security Information: DSA-272 (Google Search)
http://www.debian.org/security/2003/dsa-272
Bugtraq: 20030325 GLSA: glibc (200303-22) (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=104860855114117&w=2
http://www.mandriva.com/security/advisories?name=MDKSA-2003:037
NETBSD Security Advisory: NetBSD-SA2003-008
ftp://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2003-008.txt.asc
SuSE Security Announcement: SuSE-SA:2003:027 (Google Search)
http://www.novell.com/linux/security/advisories/2003_027_glibc.html
http://marc.theaimsgroup.com/?l=bugtraq&m=104878237121402&w=2
Bugtraq: 20030522 [slackware-security] glibc XDR overflow fix (SSA:2003-141-03) (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=105362148313082&w=2
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:230
Common Vulnerability Exposure (CVE) ID: CVE-2002-0036
CERT/CC vulnerability note: VU#587579
http://www.kb.cert.org/vuls/id/587579
Conectiva Linux advisory: CLA-2003:639
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000639
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:043
http://www.redhat.com/support/errata/RHSA-2003-168.html
XForce ISS Database: kerberos-kdc-neglength-bo(11190)
http://xforce.iss.net/xforce/xfdb/11190
BugTraq ID: 6713
http://www.securityfocus.com/bid/6713
http://www.osvdb.org/4896
Common Vulnerability Exposure (CVE) ID: CVE-2003-0058
CERT/CC vulnerability note: VU#661243
http://www.kb.cert.org/vuls/id/661243
Conectiva Linux advisory: CLSA-2003:639
http://sunsolve.sun.com/pub-cgi/retrieve.pl?doc=fsalert/50142
BugTraq ID: 6683
http://www.securityfocus.com/bid/6683
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:1110
XForce ISS Database: kerberos-kdc-null-pointer-dos(10099)
http://xforce.iss.net/xforce/xfdb/10099
Common Vulnerability Exposure (CVE) ID: CVE-2003-0059
CERT/CC vulnerability note: VU#684563
http://www.kb.cert.org/vuls/id/684563
BugTraq ID: 6714
http://www.securityfocus.com/bid/6714
XForce ISS Database: kerberos-kdc-user-spoofing(11188)
http://xforce.iss.net/xforce/xfdb/11188
Common Vulnerability Exposure (CVE) ID: CVE-2003-0072
http://sunsolve.sun.com/search/document.do?assetkey=1-26-54042-1
BugTraq ID: 7184
http://www.securityfocus.com/bid/7184
Common Vulnerability Exposure (CVE) ID: CVE-2003-0082
BugTraq ID: 7185
http://www.securityfocus.com/bid/7185
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:244
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:2536
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:4430
Common Vulnerability Exposure (CVE) ID: CVE-2003-0138
Bugtraq: 20030317 MITKRB5-SA-2003-004: Cryptographic weaknesses in Kerberos v4 protocol (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=104791775804776&w=2
Debian Security Information: DSA-269 (Google Search)
http://www.debian.org/security/2003/dsa-269
Debian Security Information: DSA-273 (Google Search)
http://www.debian.org/security/2003/dsa-273
CERT/CC vulnerability note: VU#623217
http://www.kb.cert.org/vuls/id/623217
BugTraq ID: 7113
http://www.securityfocus.com/bid/7113
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:248
Common Vulnerability Exposure (CVE) ID: CVE-2003-0139
Bugtraq: 20030319 MITKRB5-SA-2003-004: Cryptographic weaknesses in Kerberos v4 (Google Search)
Bugtraq: 20030330 GLSA: openafs (200303-26) (Google Search)
http://www.securityfocus.com/archive/1/archive/1/317130/30/25250/threaded
CERT/CC vulnerability note: VU#442569
http://www.kb.cert.org/vuls/id/442569
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:250
CopyrightCopyright (c) 2005 E-Soft Inc. http://www.securityspace.com

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