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    CVE-2009-4212

    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.

    Published:Jan 12, 2010
    Last Modified:Apr 23, 2026
    EPS:Jan 13, 2010
    EPSS Score:0.16485
    CVSS Score:10

    Affected Products

    Vendor
    Mit
    Product
    Kerberos
    Vendor
    Mit
    Product
    Kerberos 5
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Eus

    Exploits

    No exploit reference

    Related CVEs

    CVE-2018-20217 (CVSS 5.3) — A Reachable Assertion issue was discovered in the KDC in MIT Kerberos 5 (aka krb5) before 1.17. If an attacker…
    CVE-2018-5709 (CVSS 7.5) — An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. There is a variable "dbentry->n_key_data" i…
    CVE-2018-5710 (CVSS 6.5) — An issue was discovered in MIT Kerberos 5 (aka krb5) through 1.16. The pre-defined function "strlen" is gettin…
    CVE-2017-11368 (CVSS 6.5) — In MIT Kerberos 5 (aka krb5) 1.7 and later, an authenticated attacker can cause a KDC assertion failure by sen…
    CVE-2014-5354 (CVSS 3.5) — plugins/kdb/ldap/libkdb_ldap/ldap_principal2.c in MIT Kerberos 5 (aka krb5) 1.12.x and 1.13.x before 1.13.1, w…
    CVE-2014-4342 (CVSS 5) — MIT Kerberos 5 (aka krb5) 1.7.x through 1.12.x before 1.12.2 allows remote attackers to cause a denial of serv…
    CVE-2013-6800 (CVSS 4) — An unspecified third-party database module for the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) …
    CVE-2011-0282 (CVSS 5) — The Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.6.x through 1.9, when an LDAP backend is used…
    CVE-2011-0281 (CVSS 5) — The unparse implementation in the Key Distribution Center (KDC) in MIT Kerberos 5 (aka krb5) 1.6.x through 1.9…
    CVE-2010-1323 (CVSS 3.7) — MIT Kerberos 5 (aka krb5) 1.3.x, 1.4.x, 1.5.x, 1.6.x, 1.7.x, and 1.8.x through 1.8.3 does not properly determi…

    References

    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://secunia.com/advisories/38080
    http://secunia.com/advisories/38108
    http://secunia.com/advisories/38126
    http://secunia.com/advisories/38140
    http://secunia.com/advisories/38184
    http://secunia.com/advisories/38203
    http://secunia.com/advisories/38696
    http://secunia.com/advisories/40220
    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
    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
    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
    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://secunia.com/advisories/38080
    http://secunia.com/advisories/38108
    http://secunia.com/advisories/38126
    http://secunia.com/advisories/38140
    http://secunia.com/advisories/38184
    http://secunia.com/advisories/38203
    http://secunia.com/advisories/38696
    http://secunia.com/advisories/40220
    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
    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
    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

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High