Vulnerability-Lookup

FKIE_CVE-2015-6525

Vulnerability from fkie_nvd - Published: 2015-08-24 14:59 - Updated: 2026-06-17 00:31

Severity

Summary

Multiple integer overflows in the evbuffer API in Libevent 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_prepend, (3) evbuffer_expand, (4) exbuffer_reserve_space, or (5) evbuffer_read function, which triggers a heap-based buffer overflow or an infinite loop. NOTE: this identifier was SPLIT from CVE-2014-6272 per ADT3 due to different affected versions.

References

URL	Tags
cve@mitre.org	http://archives.seul.org/libevent/users/Jan-2015/msg00010.html	Vendor Advisory
cve@mitre.org	http://www.debian.org/security/2015/dsa-3119
af854a3a-2127-422b-91ae-364da2661108	http://archives.seul.org/libevent/users/Jan-2015/msg00010.html	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.debian.org/security/2015/dsa-3119

Impacted products

Vendor	Product	Version
debian	debian_linux	7.1
libevent_project	libevent	2.0.1
libevent_project	libevent	2.0.2
libevent_project	libevent	2.0.3
libevent_project	libevent	2.0.4
libevent_project	libevent	2.0.5
libevent_project	libevent	2.0.6
libevent_project	libevent	2.0.7
libevent_project	libevent	2.0.8
libevent_project	libevent	2.0.9
libevent_project	libevent	2.0.10
libevent_project	libevent	2.0.11
libevent_project	libevent	2.0.12
libevent_project	libevent	2.0.13
libevent_project	libevent	2.0.14
libevent_project	libevent	2.0.15
libevent_project	libevent	2.0.16
libevent_project	libevent	2.0.17
libevent_project	libevent	2.0.18
libevent_project	libevent	2.0.19
libevent_project	libevent	2.0.20
libevent_project	libevent	2.0.21
libevent_project	libevent	2.1.1
libevent_project	libevent	2.1.2
libevent_project	libevent	2.1.3
libevent_project	libevent	2.1.4

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "n/a",
          "vendor": "n/a",
          "versions": [
            {
              "status": "affected",
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Multiple integer overflows in the evbuffer API in Libevent 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_prepend, (3) evbuffer_expand, (4) exbuffer_reserve_space, or (5) evbuffer_read function, which triggers a heap-based buffer overflow or an infinite loop.  NOTE: this identifier was SPLIT from CVE-2014-6272 per ADT3 due to different affected versions."
    },
    {
      "lang": "es",
      "value": "Vulnerabilidad de desbordamientos de entero m\u00faltiple en la API evbuffer en Libevent 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_prepend, (3) evbuffer_expand, (4) exbuffer_reserve_space o (5) evbuffer_read, lo que desencadena un desbordamiento de buffer basado en memoria din\u00e1mica o un bucle infinito. NOTA: este identificador ha sido SEPARADO de CVE-2014-6272 por ADT3 debido a las diferentes versiones afectadas."
    }
  ],
  "id": "CVE-2015-6525",
  "lastModified": "2026-06-17T00:31:00.843",
  "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": "2015-08-24T14:59:14.133",
  "references": [
    {
      "source": "cve@mitre.org",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "http://archives.seul.org/libevent/users/Jan-2015/msg00010.html"
    },
    {
      "source": "cve@mitre.org",
      "url": "http://www.debian.org/security/2015/dsa-3119"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Vendor Advisory"
      ],
      "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"
    }
  ],
  "sourceIdentifier": "cve@mitre.org",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-189"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2015-6525 (GCVE-0-2015-6525)

Vulnerability from cvelistv5 – Published: 2015-08-24 14:00 – Updated: 2024-08-06 07:22

Summary

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

2 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

Date Public

2015-01-05 00:00

Show details on NVD website

JSON

To clipboard

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  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-06T07:22:22.219Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "http://archives.seul.org/libevent/users/Jan-2015/msg00010.html"
          },
          {
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            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "http://www.debian.org/security/2015/dsa-3119"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
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        }
      ],
      "problemTypes": [
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          "ID": "CVE-2015-6525",
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        },
        "affects": {
          "vendor": {
            "vendor_data": [
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                  "product_data": [
                    {
                      "product_name": "n/a",
                      "version": {
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            },
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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.

Detection rules are retrieved from Rulezet.

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.

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.

Action not permitted

FKIE_CVE-2015-6525

CVE-2015-6525 (GCVE-0-2015-6525)

Tags

Sightings

Nomenclature

Related by attack behaviour