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CVE-2009-4212 Detail

Description

Multiple 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.


Severity



CVSS 3.x Severity and Metrics:

NIST CVSS score
NIST: NVD
Base Score:  N/A
NVD assessment not yet provided.


NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.

Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.

Evaluator Impact

Per: http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-004.txt "Only releases krb5-1.3 and later are vulnerable, as earlier releases did not contain the functionality implemented by the vulnerable code. This is an implementation vulnerability in MIT krb5, and is not a vulnerability in the Kerberos protocol."

Evaluator Solution

Per: http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-004.txt FIXES ===== * The upcoming krb5-1.7.1 and krb5-1.6.4 releases will contain a fix for this vulnerability. * For the krb5-1.7 release, apply the patch available at: http://web.mit.edu/kerberos/advisories/2009-004-patch_1.7.txt A PGP-signed patch is available at http://web.mit.edu/kerberos/advisories/2009-004-patch_1.7.txt.asc * For the krb5-1.6 releases, apply the patch available at: http://web.mit.edu/kerberos/advisories/2009-004-patch_1.6.3.txt A PGP-signed patch is available at http://web.mit.edu/kerberos/advisories/2009-004-patch_1.6.3.txt.asc * The krb5-1.6.3 patch might apply successfully to older releases.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://lists.apple.com/archives/security-announce/2010//Jun/msg00001.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-January/033915.html
http://lists.fedoraproject.org/pipermail/package-announce/2010-January/033919.html
http://marc.info/?l=bugtraq&m=130497213107107&w=2
http://sunsolve.sun.com/search/document.do?assetkey=1-66-275530-1
http://sunsolve.sun.com/search/document.do?assetkey=1-77-1021779.1-1
http://support.apple.com/kb/HT4188
http://support.avaya.com/css/P8/documents/100074869
http://ubuntu.com/usn/usn-881-1
http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-004.txt Patch  Vendor Advisory 
http://www.debian.org/security/2010/dsa-1969
http://www.mandriva.com/security/advisories?name=MDVSA-2010:006
http://www.securityfocus.com/bid/37749
http://www.securitytracker.com/id?1023440
http://www.vupen.com/english/advisories/2010/0096
http://www.vupen.com/english/advisories/2010/0129
http://www.vupen.com/english/advisories/2010/1481
https://bugzilla.redhat.com/show_bug.cgi?id=545015 Patch 
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11272
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7357
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8192
https://rhn.redhat.com/errata/RHSA-2010-0029.html
https://rhn.redhat.com/errata/RHSA-2010-0095.html

Weakness Enumeration

CWE-ID CWE Name Source
CWE-189 Numeric Errors cwe source acceptance level NIST  

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Change History

22 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2009-4212
NVD Published Date:
01/13/2010
NVD Last Modified:
01/21/2020
Source:
MITRE