CVE-2014-6272 (GCVE-0-2014-6272)
Vulnerability from cvelistv5 – Published: 2015-08-24 14:00 – Updated: 2024-08-06 12:10
VLAI
EPSS
VEX
Summary
Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other unspecified impact via "insanely large inputs" to the (1) evbuffer_add, (2) evbuffer_expand, or (3) bufferevent_write function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier has been SPLIT per ADT3 due to different affected versions. See CVE-2015-6525 for the functions that are only affected in 2.0 and later.
Severity
No CVSS data available.
CWE
- n/a
Assigner
References
4 references
| URL | Tags |
|---|---|
| http://archives.seul.org/libevent/users/Jan-2015/… | mailing-listx_refsource_MLIST |
| http://www.debian.org/security/2015/dsa-3119 | vendor-advisoryx_refsource_DEBIAN |
| https://puppet.com/security/cve/CVE-2014-6272 | x_refsource_CONFIRM |
| http://www.slackware.com/security/viewer.php?l=sl… | vendor-advisoryx_refsource_SLACKWARE |
Date Public
2015-01-05 00:00
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},
{
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{
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{
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{
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{
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{
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{
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{
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},
{
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},
{
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},
{
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{
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},
{
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{
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{
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{
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{
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{
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},
{
"criteria": "cpe:2.3:a:libevent_project:libevent:2.0.12:*:*:*:*:*:*:*",
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{
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},
{
"criteria": "cpe:2.3:a:libevent_project:libevent:2.0.14:*:*:*:*:*:*:*",
"matchCriteriaId": "B5E1FDA8-05D9-4368-8396-E9AED85B1919",
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},
{
"criteria": "cpe:2.3:a:libevent_project:libevent:2.0.15:*:*:*:*:*:*:*",
"matchCriteriaId": "D210003F-B3DE-4964-8F1F-58AB1F75AFF0",
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},
{
"criteria": "cpe:2.3:a:libevent_project:libevent:2.0.16:*:*:*:*:*:*:*",
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},
{
"criteria": "cpe:2.3:a:libevent_project:libevent:2.0.17:*:*:*:*:*:*:*",
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},
{
"criteria": "cpe:2.3:a:libevent_project:libevent:2.0.18:*:*:*:*:*:*:*",
"matchCriteriaId": "712FC1B9-F0C0-49BC-9E70-ADB2C18C442D",
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{
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}
],
"negate": false,
"operator": "OR"
}
]
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "Multiple integer overflows in the evbuffer API in Libevent 1.4.x before 1.4.15, 2.0.x before 2.0.22, and 2.1.x before 2.1.5-beta allow context-dependent attackers to cause a denial of service or possibly have other unspecified impact via \"insanely large inputs\" to the (1) evbuffer_add, (2) evbuffer_expand, or (3) bufferevent_write function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier has been SPLIT per ADT3 due to different affected versions. See CVE-2015-6525 for the functions that are only affected in 2.0 and later."
},
{
"lang": "es",
"value": "Vulnerabilidad de desbordamientos de entero m\u00faltiple en la API evbuffer en Libevent 1.4.x en versiones anteriores a 1.4.15, 2.0.x en versiones anteriores a 2.0.22 y 2.1.x en versiones anteriores a 2.1.5-beta, permite a atacantes dependientes del contexto causar una denegaci\u00f3n de servicio o posiblemente tener otro impacto no especificado a trav\u00e9s de \u0027entradas incre\u00edblemente grandes\u0027 en la funci\u00f3n (1) evbuffer_add, (2) evbuffer_expand o (3) bufferevent_write, lo que desencadena un desbordamiento de buffer basado en memoria din\u00e1mica o un bucle infinito. NOTA: este identificador ha sido SEPARADO por ADT3 debido a diferentes versiones afectadas. Ver CVE-2015-6525 para las funciones que solo son afectadas en la versi\u00f3n 2.0 y anteriores."
}
],
"id": "CVE-2014-6272",
"lastModified": "2026-05-06T22:30:45.220",
"metrics": {
"cvssMetricV2": [
{
"acInsufInfo": false,
"baseSeverity": "HIGH",
"cvssData": {
"accessComplexity": "LOW",
"accessVector": "NETWORK",
"authentication": "NONE",
"availabilityImpact": "PARTIAL",
"baseScore": 7.5,
"confidentialityImpact": "PARTIAL",
"integrityImpact": "PARTIAL",
"vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
"version": "2.0"
},
"exploitabilityScore": 10.0,
"impactScore": 6.4,
"obtainAllPrivilege": false,
"obtainOtherPrivilege": false,
"obtainUserPrivilege": false,
"source": "nvd@nist.gov",
"type": "Primary",
"userInteractionRequired": false
}
]
},
"published": "2015-08-24T14:59:01.353",
"references": [
{
"source": "security@debian.org",
"tags": [
"Vendor Advisory"
],
"url": "http://archives.seul.org/libevent/users/Jan-2015/msg00010.html"
},
{
"source": "security@debian.org",
"url": "http://www.debian.org/security/2015/dsa-3119"
},
{
"source": "security@debian.org",
"url": "http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2016\u0026m=slackware-security.366317"
},
{
"source": "security@debian.org",
"url": "https://puppet.com/security/cve/CVE-2014-6272"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"tags": [
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],
"url": "http://archives.seul.org/libevent/users/Jan-2015/msg00010.html"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.debian.org/security/2015/dsa-3119"
},
{
"source": "af854a3a-2127-422b-91ae-364da2661108",
"url": "http://www.slackware.com/security/viewer.php?l=slackware-security\u0026y=2016\u0026m=slackware-security.366317"
},
{
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"url": "https://puppet.com/security/cve/CVE-2014-6272"
}
],
"sourceIdentifier": "security@debian.org",
"vulnStatus": "Modified",
"weaknesses": [
{
"description": [
{
"lang": "en",
"value": "CWE-189"
}
],
"source": "nvd@nist.gov",
"type": "Primary"
}
]
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-06-27T10:25:38+00:00",
"cve": "CVE-2014-6272",
"id": "CVE-2014-6272",
"initial_release_date": "2014-01-01T00:00:00+00:00",
"product_status:known_affected": "22",
"product_status:known_not_affected": "10",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "libevent: potential heap overflow in buffer/bufferevent APIs",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2014/cve-2014-6272.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-01T02:40:38Z",
"cve": "CVE-2014-6272",
"id": "CVE-2014-6272",
"initial_release_date": "2023-02-15T05:27:09Z",
"product_status:known_affected": "320",
"product_status:known_not_affected": "42",
"product_status:recommended": "269",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2014-6272",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2014-6272.json",
"version": "41"
}
}
}
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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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