CVE-2009-4212

MITRE NVD CVE.ORG JSON API Print: PDF PDF

Summary

CVECVE-2009-4212
StatePUBLISHED
Assignermitre
Source PriorityCVE Program / NVD first with legacy fallback
Published2010-01-13 19:30:00 UTC
Updated2026-04-23 00:35:47 UTC
DescriptionMultiple integer underflows in the (1) AES and (2) RC4 decryption functionality in the crypto library in MIT Kerberos 5 (aka krb5) 1.3 through 1.6.3, and 1.7 before 1.7.1, allow remote attackers to cause a denial of service (daemon crash) or possibly execute arbitrary code by providing ciphertext with a length that is too short to be valid.

Risk And Classification

Primary CVSS: v2.0 10 from [email protected]

AV:N/AC:L/Au:N/C:C/I:C/A:C

Problem Types: CWE-189 | n/a

CVSS v2.0 Breakdown

Access Vector
Network
Access Complexity
Low
Authentication
None
Confidentiality
Complete
Integrity
Complete
Availability
Complete

AV:N/AC:L/Au:N/C:C/I:C/A:C

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Mit Kerberos 5-1.6.3 All All All
Application Mit Kerberos 5 1.3 All All All
Application Mit Kerberos 5 1.3.1 All All All
Application Mit Kerberos 5 1.3.2 All All All
Application Mit Kerberos 5 1.3.3 All All All
Application Mit Kerberos 5 1.3.4 All All All
Application Mit Kerberos 5 1.3.5 All All All
Application Mit Kerberos 5 1.3.6 All All All
Application Mit Kerberos 5 1.4 All All All
Application Mit Kerberos 5 1.4.1 All All All
Application Mit Kerberos 5 1.4.2 All All All
Application Mit Kerberos 5 1.4.3 All All All
Application Mit Kerberos 5 1.4.4 All All All
Application Mit Kerberos 5 1.5 All All All
Application Mit Kerberos 5 1.5.1 All All All
Application Mit Kerberos 5 1.5.2 All All All
Application Mit Kerberos 5 1.5.3 All All All
Application Mit Kerberos 5 1.6 All All All
Application Mit Kerberos 5 1.6.1 All All All
Application Mit Kerberos 5 1.6.2 All All All
Application Mit Kerberos 5 1.7 All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Na N/a affected n/a Not specified

References

ReferenceSourceLinkTags
MIT Kerberos AES and RC4 Decryption Integer Underflow Vulnerabilities af854a3a-2127-422b-91ae-364da2661108 www.securityfocus.com
Security Advisory SA38203 - Fedora update for krb5 - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
Security Advisory SA38140 - Debian update for krb5 - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
USN-881-1: Kerberos vulnerability | Ubuntu af854a3a-2127-422b-91ae-364da2661108 ubuntu.com
Apple Mac OS X Security Update Fixes Multiple Vulnerabilities - Advisories - Community af854a3a-2127-422b-91ae-364da2661108 secunia.com
Debian -- Security Information -- DSA-1969-1 krb5 af854a3a-2127-422b-91ae-364da2661108 www.debian.org
Avaya Products Multiple Vulnerabilities - Advisories - Community af854a3a-2127-422b-91ae-364da2661108 secunia.com
Sun Solaris Kerberos Integer Underflow Vulnerabilities - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-004.txt af854a3a-2127-422b-91ae-364da2661108 web.mit.edu Patch, Vendor Advisory
Security Advisory SA38108 - Red Hat update for krb5 - Secunia af854a3a-2127-422b-91ae-364da2661108 secunia.com
[SECURITY] Fedora 11 Update: krb5-1.6.3-23.fc11 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
sunsolve.sun.com/search/document.do af854a3a-2127-422b-91ae-364da2661108 sunsolve.sun.com
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
[SECURITY] Fedora 12 Update: krb5-1.7-18.fc12 af854a3a-2127-422b-91ae-364da2661108 lists.fedoraproject.org
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
rhn.redhat.com | Red Hat Support af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Repository / Oval Repository af854a3a-2127-422b-91ae-364da2661108 oval.cisecurity.org
Webmail : Solution de messagerie professionnelle - OVHcloud- OVH af854a3a-2127-422b-91ae-364da2661108 www.vupen.com
sunsolve.sun.com/search/document.do af854a3a-2127-422b-91ae-364da2661108 sunsolve.sun.com
Bug 545015 – CVE-2009-4212 krb: KDC integer overflows in AES and RC4 decryption routines (MITKRB5-SA-2009-004) af854a3a-2127-422b-91ae-364da2661108 bugzilla.redhat.com Patch
Red Hat Customer Portal af854a3a-2127-422b-91ae-364da2661108 rhn.redhat.com
Support / Security / Advisories / / MDVSA-2010:006 | Mandriva af854a3a-2127-422b-91ae-364da2661108 www.mandriva.com
About the security content of Security Update 2010-004 / Mac OS X v10.6.4 af854a3a-2127-422b-91ae-364da2661108 support.apple.com
'[security bulletin] HPSBOV02682 SSRT100495 rev.1 - HP OpenVMS running Kerberos, Remote Denial of Ser' - MARC af854a3a-2127-422b-91ae-364da2661108 marc.info
ASA-2010-053 (RHSA-2010-0039) af854a3a-2127-422b-91ae-364da2661108 support.avaya.com
Ubuntu update for krb5 - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
APPLE-SA-2010-06-15-1 Security Update 2010-004 / Mac OS X v10.6.4 af854a3a-2127-422b-91ae-364da2661108 lists.apple.com
Kerberos AES and RC4 Integer Underflow May Let Remote Users Execute Arbitrary Code - SecurityTracker af854a3a-2127-422b-91ae-364da2661108 www.securitytracker.com
Kerberos KDC RC4 and AES Decryption Integer Underflow Vulnerabilities - Secunia Advisories - Vulnerability Information - Secunia.com af854a3a-2127-422b-91ae-364da2661108 secunia.com
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis
© CVE.report 2026 |

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report