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Test ID:1.3.6.1.4.1.25623.1.0.51359
Category:Conectiva Local Security Checks
Title:Conectiva Security Advisory CLA-2004:860
Summary:Conectiva Security Advisory CLA-2004:860
Description:
The remote host is missing updates announced in
advisory CLA-2004:860.

The krb5 packages are MIT's[1] implementation of the Kerberos 5
authentication protocol.

This announcement fixes several vulnerabilities listed in the
advisories MITKRB5-SA-2004-001[2], MITKRB5-SA-2004-002[3] and
MITKRB5-SA-2004-003[4]:

1. Buffer overflows in krb5_aname_to_localname() (CVE-2004-0523[5])

The krb5_aname_to_localname() library function contains multiple
buffer overflows vulnerabilities[5] which could be exploited to gain
unauthorized root access. Exploitation of these flaws requires an
unusual combination of factors, including successful authentication
to a vulnerable service and a non-default configuration on the target
service. This announcement updates the correction used to the patch
provided by Bill Dodd.

2. Several double-free vulnerabilities in KDC and libraries
(CVE-2004-0642[6], CVE-2004-0643[7], CVE-2004-0772[8])

The MIT Kerberos 5 implementation's Key Distribution Center (KDC)
program contains a double-free vulnerability that potentially allows
a remote attacker to execute arbitrary code. Additionally,
double-free vulnerabilities exist in MIT Kerberos 5 library code,
making client programs and application servers vulnerable. The
vulnerability in krb524d was discovered by Marc Horowitz
the other
double-free vulnerabilities were discovered by Will Fiveash and Nico
Williams
at Sun.

3. ASN.1 decoder denial of service (CVE-2004-0644[9])

Will Fiveash and Nico Williams also found a denial-of-service
vulnerability[9] in the ASN.1 decoder library in the MIT Kerberos 5
distribution which could lead to an infinite loop in the decoder,
allowing an unauthenticated remote attacker to cause a KDC or
application server to hang inside an infinite loop and an attacker
impersonating a legitimate KDC or application server to cause a
client program to hang inside an infinite loop.


Solution:
The apt tool can be used to perform RPM package upgrades
by running 'apt-get update' followed by 'apt-get upgrade'

http://web.mit.edu/Kerberos/www/index.html
http://web.mit.edu/Kerberos/www/advisories/MITKRB5-SA-2004-001-an_to_ln.txt
http://web.mit.edu/Kerberos/www/advisories/MITKRB5-SA-2004-002-dblfree.txt
http://web.mit.edu/Kerberos/www/advisories/MITKRB5-SA-2004-003-asn1.txt
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0523
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0642
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0643
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0772
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2004-0644
http://www.securityspace.com/smysecure/catid.html?in=CLA-2004:860
http://distro.conectiva.com.br/atualizacoes/index.php?id=a&anuncio=002004

Risk factor : Critical
Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2004-0523
Bugtraq: 20040601 MITKRB5-SA-2004-001: buffer overflows in krb5_aname_to_localname (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=108612325909496&w=2
Conectiva Linux advisory: CLA-2004:860
http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000860
Debian Security Information: DSA-520 (Google Search)
http://www.debian.org/security/2004/dsa-520
http://lwn.net/Articles/88206/
http://www.gentoo.org/security/en/glsa/glsa-200406-21.xml
http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2004:056
http://www.redhat.com/support/errata/RHSA-2004-236.html
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101512-1
http://marc.theaimsgroup.com/?l=bugtraq&m=108619250923790&w=2
Bugtraq: 20040602 TSSA-2004-009 - kerberos5 (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=108619161815320&w=2
SGI Security Advisory: 20040605-01-U
ftp://patches.sgi.com/support/free/security/advisories/20040605-01-U.asc
SGI Security Advisory: 20040604-01-U
ftp://patches.sgi.com/support/free/security/advisories/20040604-01-U.asc
CERT/CC vulnerability note: VU#686862
http://www.kb.cert.org/vuls/id/686862
BugTraq ID: 10448
http://www.securityfocus.com/bid/10448
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:991
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:2002
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:724
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10295
XForce ISS Database: Kerberos-krb5anametolocalname-bo(16268)
http://xforce.iss.net/xforce/xfdb/16268
Common Vulnerability Exposure (CVE) ID: CVE-2004-0642
Cert/CC Advisory: TA04-247A
http://www.us-cert.gov/cas/techalerts/TA04-247A.html
CERT/CC vulnerability note: VU#795632
http://www.kb.cert.org/vuls/id/795632
Debian Security Information: DSA-543 (Google Search)
http://www.debian.org/security/2004/dsa-543
http://www.gentoo.org/security/en/glsa/glsa-200409-09.xml
RedHat Security Advisories: RHSA-2004:350
http://rhn.redhat.com/errata/RHSA-2004-350.html
http://www.trustix.net/errata/2004/0045/
Bugtraq: 20040913 [OpenPKG-SA-2004.039] OpenPKG Security Advisory (kerberos) (Google Search)
http://marc.theaimsgroup.com/?l=bugtraq&m=109508872524753&w=2
BugTraq ID: 11078
http://www.securityfocus.com/bid/11078
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:4936
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10709
XForce ISS Database: kerberos-kdc-double-free(17157)
http://xforce.iss.net/xforce/xfdb/17157
Common Vulnerability Exposure (CVE) ID: CVE-2004-0643
CERT/CC vulnerability note: VU#866472
http://www.kb.cert.org/vuls/id/866472
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:3322
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10267
XForce ISS Database: kerberos-krb5rdcred-double-free(17159)
http://xforce.iss.net/xforce/xfdb/17159
Common Vulnerability Exposure (CVE) ID: CVE-2004-0772
CERT/CC vulnerability note: VU#350792
http://www.kb.cert.org/vuls/id/350792
http://www.mandriva.com/security/advisories?name=MDKSA-2004:088
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:4661
XForce ISS Database: kerberos-krb524d-double-free(17158)
http://xforce.iss.net/xforce/xfdb/17158
Common Vulnerability Exposure (CVE) ID: CVE-2004-0644
CERT/CC vulnerability note: VU#550464
http://www.kb.cert.org/vuls/id/550464
BugTraq ID: 11079
http://www.securityfocus.com/bid/11079
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:2139
http://oval.mitre.org/repository/data/getDef?id=oval:org.mitre.oval:def:10014
XForce ISS Database: kerberos-asn1-library-dos(17160)
http://xforce.iss.net/xforce/xfdb/17160
CopyrightCopyright (c) 2005 E-Soft Inc. http://www.securityspace.com

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