CVE-2006-6143

Name: CVE-2006-6143
Creator: NVD / NIST
Published: 2006-12-31T05:00:00+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 7.93%

Last modified Jun 16, 2026

CVE-2006-6143 is a vulnerability of currently unknown severity. The RPC library in Kerberos 5 1.4 through 1.4.4, and 1.5 through 1.5.1, as used in Kerberos administration daemon (kadmind) and other products that use this library, calls an uninitialized function pointer in freed memory, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.. EPSS estimates a 7.93% chance of exploitation in the next 30 days.

Description

The RPC library in Kerberos 5 1.4 through 1.4.4, and 1.5 through 1.5.1, as used in Kerberos administration daemon (kadmind) and other products that use this library, calls an uninitialized function pointer in freed memory, which allows remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via unspecified vectors.

Metrics

EPSS Probability

7.93%

94.0th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-824

Affected Software

Vendor	Product	Versions
Mit	Kerberos 5	1.4
Mit	Kerberos 5	1.4.1
Mit	Kerberos 5	1.4.2
Mit	Kerberos 5	1.4.3
Mit	Kerberos 5	1.4.4
Mit	Kerberos 5	1.5
Mit	Kerberos 5	1.5.1
Canonical	Ubuntu Linux	6.06
Canonical	Ubuntu Linux	6.10

References

http://docs.info.apple.com/article.html?artnum=305391Broken Link
http://fedoranews.org/cms/node/2375Broken Link
http://fedoranews.org/cms/node/2376Broken Link
http://lists.apple.com/archives/Security-announce/2007/Apr/msg00001.htmlMailing List
http://lists.suse.com/archive/suse-security-announce/2007-Jan/0004.htmlBroken Link
http://osvdb.org/31281Broken Link
http://secunia.com/advisories/23667Broken Link
http://secunia.com/advisories/23696Broken Link
http://secunia.com/advisories/23701Broken Link
http://secunia.com/advisories/23706Broken Link
http://secunia.com/advisories/23707Broken Link
http://secunia.com/advisories/23772Broken Link
http://secunia.com/advisories/23903Broken Link
http://secunia.com/advisories/24966Broken Link
http://security.gentoo.org/glsa/glsa-200701-21.xmlThird Party Advisory
http://securitytracker.com/id?1017493Broken Link, Third Party Advisory, VDB Entry
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2006-002-rpc.txtPatch, Vendor Advisory
http://www.kb.cert.org/vuls/id/481564Patch, Third Party Advisory, US Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2007:008Third Party Advisory
http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.006.htmlBroken Link
http://www.securityfocus.com/archive/1/456406/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/21970Broken Link, Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/usn-408-1Third Party Advisory
http://www.us-cert.gov/cas/techalerts/TA07-009B.htmlBroken Link, Patch, Third Party Advisory, US Government Resource
http://www.us-cert.gov/cas/techalerts/TA07-109A.htmlBroken Link, Third Party Advisory, US Government Resource
http://www.vupen.com/english/advisories/2007/0111Broken Link
http://www.vupen.com/english/advisories/2007/1470Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/31422Third Party Advisory, VDB Entry
https://issues.rpath.com/browse/RPL-925Broken Link
http://docs.info.apple.com/article.html?artnum=305391Broken Link
http://fedoranews.org/cms/node/2375Broken Link
http://fedoranews.org/cms/node/2376Broken Link
http://lists.apple.com/archives/Security-announce/2007/Apr/msg00001.htmlMailing List
http://lists.suse.com/archive/suse-security-announce/2007-Jan/0004.htmlBroken Link
http://osvdb.org/31281Broken Link
http://secunia.com/advisories/23667Broken Link
http://secunia.com/advisories/23696Broken Link
http://secunia.com/advisories/23701Broken Link
http://secunia.com/advisories/23706Broken Link
http://secunia.com/advisories/23707Broken Link
http://secunia.com/advisories/23772Broken Link
http://secunia.com/advisories/23903Broken Link
http://secunia.com/advisories/24966Broken Link
http://security.gentoo.org/glsa/glsa-200701-21.xmlThird Party Advisory
http://securitytracker.com/id?1017493Broken Link, Third Party Advisory, VDB Entry
http://web.mit.edu/kerberos/www/advisories/MITKRB5-SA-2006-002-rpc.txtPatch, Vendor Advisory
http://www.kb.cert.org/vuls/id/481564Patch, Third Party Advisory, US Government Resource
http://www.mandriva.com/security/advisories?name=MDKSA-2007:008Third Party Advisory
http://www.openpkg.com/security/advisories/OpenPKG-SA-2007.006.htmlBroken Link
http://www.securityfocus.com/archive/1/456406/100/0/threadedBroken Link, Third Party Advisory, VDB Entry
http://www.securityfocus.com/bid/21970Broken Link, Third Party Advisory, VDB Entry
http://www.ubuntu.com/usn/usn-408-1Third Party Advisory
http://www.us-cert.gov/cas/techalerts/TA07-009B.htmlBroken Link, Patch, Third Party Advisory, US Government Resource
http://www.us-cert.gov/cas/techalerts/TA07-109A.htmlBroken Link, Third Party Advisory, US Government Resource
http://www.vupen.com/english/advisories/2007/0111Broken Link
http://www.vupen.com/english/advisories/2007/1470Broken Link
https://exchange.xforce.ibmcloud.com/vulnerabilities/31422Third Party Advisory, VDB Entry
https://issues.rpath.com/browse/RPL-925Broken Link

Timeline

Published: Dec 31, 2006
Last Modified: Jun 16, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2006-6143?

How severe is CVE-2006-6143?

Severity scoring for CVE-2006-6143 is pending analysis. The EPSS model estimates a 7.93% probability of exploitation in the next 30 days.

How do I fix CVE-2006-6143?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2006-6143?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST