CVE-2009-4212 (GCVE-0-2009-4212)
Vulnerability from cvelistv5 – Published: 2010-01-13 19:00 – Updated: 2024-08-07 06:54
VLAI
EPSS
VEX
Summary
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
No CVSS data available.
CWE
- n/a
Assigner
References
31 references
Date Public
2010-01-12 00:00
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"value": "M\u00faltiples vulnerabilidades de desbordamiento de entero en la funcionalidad de desencriptado AES y RC4 en la biblioteca crypto en MIT Kerberos 5 (tambi\u00e9n conocido comokrb5) v1.3 a la v1.6.3, y 1.7 anterior a v1.7.1, permite a atacantes remotos provocar una denegaci\u00f3n de servici\u00f3n (ca\u00edda de demonio) o posiblemente la ejecuci\u00f3n de c\u00f3digo de su elecci\u00f3n facilitando texto cifrado (ciphertext) con un tama\u00f1o menor al v\u00e1lido."
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"matchCriteriaId": "B639DD5F-71C7-4D9B-BA5C-51CAF64140B6",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.5.2:*:*:*:*:*:*:*",
"matchCriteriaId": "2B904DCE-D59F-45C7-A814-DE42CF02792D",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.5.3:*:*:*:*:*:*:*",
"matchCriteriaId": "9957FE9E-1E89-4C27-852C-44F866A1834E",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.6:*:*:*:*:*:*:*",
"matchCriteriaId": "2C382DAA-68D2-4DD9-BE29-8EEB0BAF1A7A",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.6.1:*:*:*:*:*:*:*",
"matchCriteriaId": "73BB258E-51CF-4D12-836B-BCEA587A3F5F",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.6.2:*:*:*:*:*:*:*",
"matchCriteriaId": "F81DE01C-BA3B-40B4-BD85-17692F0AF8A8",
"vulnerable": true
},
{
"criteria": "cpe:2.3:a:mit:kerberos_5:1.7:*:*:*:*:*:*:*",
"matchCriteriaId": "DFB1190E-BE7A-4C6B-862D-D5747C64E980",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "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."
},
{
"lang": "es",
"value": "M\u00faltiples vulnerabilidades de desbordamiento de entero en la funcionalidad de desencriptado AES y RC4 en la biblioteca crypto en MIT Kerberos 5 (tambi\u00e9n conocido comokrb5) v1.3 a la v1.6.3, y 1.7 anterior a v1.7.1, permite a atacantes remotos provocar una denegaci\u00f3n de servici\u00f3n (ca\u00edda de demonio) o posiblemente la ejecuci\u00f3n de c\u00f3digo de su elecci\u00f3n facilitando texto cifrado (ciphertext) con un tama\u00f1o menor al v\u00e1lido."
}
],
"evaluatorImpact": "Per: http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-004.txt\r\n\r\n\r\n\"Only releases krb5-1.3 and later are vulnerable, as\r\nearlier releases did not contain the functionality implemented by the\r\nvulnerable code.\r\n\r\nThis is an implementation vulnerability in MIT krb5, and is not a\r\nvulnerability in the Kerberos protocol.\"",
"evaluatorSolution": "Per: http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-004.txt\r\n\r\n\r\nFIXES\r\n=====\r\n\r\n* The upcoming krb5-1.7.1 and krb5-1.6.4 releases will contain a fix\r\n for this vulnerability.\r\n\r\n* For the krb5-1.7 release, apply the patch available at:\r\n\r\n http://web.mit.edu/kerberos/advisories/2009-004-patch_1.7.txt\r\n\r\n A PGP-signed patch is available at\r\n\r\n http://web.mit.edu/kerberos/advisories/2009-004-patch_1.7.txt.asc\r\n\r\n\r\n* For the krb5-1.6 releases, apply the patch available at:\r\n\r\n http://web.mit.edu/kerberos/advisories/2009-004-patch_1.6.3.txt\r\n\r\n A PGP-signed patch is available at\r\n\r\n http://web.mit.edu/kerberos/advisories/2009-004-patch_1.6.3.txt.asc\r\n\r\n* The krb5-1.6.3 patch might apply successfully to older releases.\r\n",
"id": "CVE-2009-4212",
"lastModified": "2026-04-23T00:35:47.467",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "COMPLETE",
"baseScore": 10.0,
"confidentialityImpact": "COMPLETE",
"integrityImpact": "COMPLETE",
"vectorString": "AV:N/AC:L/Au:N/C:C/I:C/A:C",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 10.0,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2010-01-13T19:30:00.607",
"references": [
{
"source": "cve@mitre.org",
"url": "http://lists.apple.com/archives/security-announce/2010//Jun/msg00001.html"
},
{
"source": "cve@mitre.org",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-January/033915.html"
},
{
"source": "cve@mitre.org",
"url": "http://lists.fedoraproject.org/pipermail/package-announce/2010-January/033919.html"
},
{
"source": "cve@mitre.org",
"url": "http://marc.info/?l=bugtraq\u0026m=130497213107107\u0026w=2"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/38080"
},
{
"source": "cve@mitre.org",
"url": "http://secunia.com/advisories/38108"
},
{
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{
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"url": "http://secunia.com/advisories/38696"
},
{
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"url": "http://secunia.com/advisories/40220"
},
{
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},
{
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},
{
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"tags": [
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],
"url": "http://web.mit.edu/kerberos/advisories/MITKRB5-SA-2009-004.txt"
},
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"url": "http://www.debian.org/security/2010/dsa-1969"
},
{
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"url": "http://www.mandriva.com/security/advisories?name=MDVSA-2010:006"
},
{
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},
{
"source": "cve@mitre.org",
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},
{
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},
{
"source": "cve@mitre.org",
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},
{
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"tags": [
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],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=545015"
},
{
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"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11272"
},
{
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"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A7357"
},
{
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"url": "https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A8192"
},
{
"source": "cve@mitre.org",
"url": "https://rhn.redhat.com/errata/RHSA-2010-0029.html"
},
{
"source": "cve@mitre.org",
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},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
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},
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},
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],
"sourceIdentifier": "cve@mitre.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-189"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Critical",
"current_release_date": "2026-06-27T16:43:28+00:00",
"cve": "CVE-2009-4212",
"id": "CVE-2009-4212",
"initial_release_date": "2009-01-01T00:00:00+00:00",
"product_status:fixed": "311",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "krb: KDC integer overflows in AES and RC4 decryption routines (MITKRB5-SA-2009-004)",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2009/cve-2009-4212.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "critical",
"current_release_date": "2026-08-23T00:56:53Z",
"cve": "CVE-2009-4212",
"id": "CVE-2009-4212",
"initial_release_date": "2023-02-15T06:01:33Z",
"product_status:recommended": "281",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2009-4212",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2009-4212.json",
"version": "18"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
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