Vulnerability-Lookup

FKIE_CVE-2016-8618

Vulnerability from fkie_nvd - Published: 2018-07-31 21:29 - Updated: 2026-06-17 00:54

Severity

5.3 (Medium) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
9.8 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Summary

The libcurl API function called `curl_maprintf()` before version 7.51.0 can be tricked into doing a double-free due to an unsafe `size_t` multiplication, on systems using 32 bit `size_t` variables.

References

URL	Tags
secalert@redhat.com	http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
secalert@redhat.com	http://www.securityfocus.com/bid/94098	Third Party Advisory, VDB Entry
secalert@redhat.com	http://www.securitytracker.com/id/1037192	Third Party Advisory, VDB Entry
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2018:2486	Third Party Advisory
secalert@redhat.com	https://access.redhat.com/errata/RHSA-2018:3558
secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8618	Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com	https://curl.haxx.se/docs/adv_20161102D.html	Patch, Vendor Advisory
secalert@redhat.com	https://security.gentoo.org/glsa/201701-47	Third Party Advisory
secalert@redhat.com	https://www.tenable.com/security/tns-2016-21	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html
af854a3a-2127-422b-91ae-364da2661108	http://www.securityfocus.com/bid/94098	Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108	http://www.securitytracker.com/id/1037192	Third Party Advisory, VDB Entry
af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/errata/RHSA-2018:2486	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://access.redhat.com/errata/RHSA-2018:3558
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8618	Issue Tracking, Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://curl.haxx.se/docs/adv_20161102D.html	Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.gentoo.org/glsa/201701-47	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.tenable.com/security/tns-2016-21	Third Party Advisory

Impacted products

	Vendor	Product	Version
	haxx	curl	*

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "curl",
          "vendor": "The Curl Project",
          "versions": [
            {
              "status": "affected",
              "version": "7.51.0"
            }
          ]
        }
      ],
      "source": "secalert@redhat.com"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "003F3872-1AD1-4980-9A63-39B7D6E09D66",
              "versionEndExcluding": "7.51.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "The libcurl API function called `curl_maprintf()` before version 7.51.0 can be tricked into doing a double-free due to an unsafe `size_t` multiplication, on systems using 32 bit `size_t` variables."
    },
    {
      "lang": "es",
      "value": "La funci\u00f3n API de libcurl llamada \"curl_maprintf()\" en versiones anteriores a la 7.51.0 puede ser enga\u00f1ada para realizar una doble liberaci\u00f3n (double free) debido a una multiplicaci\u00f3n \"size_t\" insegura en sistemas que utilizan variables \"size_t\" de 32 bits."
    }
  ],
  "id": "CVE-2016-8618",
  "lastModified": "2026-06-17T00:54:36.980",
  "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
      }
    ],
    "cvssMetricV30": [
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          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "NONE",
          "baseScore": 5.3,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "LOW",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
          "version": "3.0"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 1.4,
        "source": "secalert@redhat.com",
        "type": "Secondary"
      },
      {
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          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 9.8,
          "baseSeverity": "CRITICAL",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.0"
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        "exploitabilityScore": 3.9,
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        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2018-07-31T21:29:00.270",
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    {
      "source": "secalert@redhat.com",
      "url": "https://access.redhat.com/errata/RHSA-2018:3558"
    },
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      ],
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    },
    {
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      "url": "https://curl.haxx.se/docs/adv_20161102D.html"
    },
    {
      "source": "secalert@redhat.com",
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        "Third Party Advisory"
      ],
      "url": "https://security.gentoo.org/glsa/201701-47"
    },
    {
      "source": "secalert@redhat.com",
      "tags": [
        "Third Party Advisory"
      ],
      "url": "https://www.tenable.com/security/tns-2016-21"
    },
    {
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    },
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    },
    {
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      "tags": [
        "Patch",
        "Vendor Advisory"
      ],
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    },
    {
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    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
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      "url": "https://www.tenable.com/security/tns-2016-21"
    }
  ],
  "sourceIdentifier": "secalert@redhat.com",
  "vulnStatus": "Modified",
  "weaknesses": [
    {
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        {
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          "value": "CWE-416"
        }
      ],
      "source": "secalert@redhat.com",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-415"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

CVE-2016-8618 (GCVE-0-2016-8618)

Vulnerability from cvelistv5 – Published: 2018-07-31 21:00 – Updated: 2024-08-06 02:27

Summary

The libcurl API function called `curl_maprintf()` before version 7.51.0 can be tricked into doing a double-free due to an unsafe `size_t` multiplication, on systems using 32 bit `size_t` variables.

Severity

5.3 (Medium)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CWE

CWE-416

Assigner

redhat redhat root

References

9 references

URL	Tags
https://access.redhat.com/errata/RHSA-2018:3558	vendor-advisoryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
https://www.tenable.com/security/tns-2016-21	x_refsource_CONFIRM
http://www.securitytracker.com/id/1037192	vdb-entryx_refsource_SECTRACK
http://www.oracle.com/technetwork/security-adviso…	x_refsource_CONFIRM
https://curl.haxx.se/docs/adv_20161102D.html	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:2486	vendor-advisoryx_refsource_REDHAT
https://security.gentoo.org/glsa/201701-47	vendor-advisoryx_refsource_GENTOO
http://www.securityfocus.com/bid/94098	vdb-entryx_refsource_BID

Impacted products

1 product

Vendor	Product	Version
The Curl Project	curl	Affected: 7.51.0

Date Public

2016-11-02 00:00

Show details on NVD website

JSON

To clipboard

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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.