gsd-2018-16840
Vulnerability from gsd
Modified
2023-12-13 01:22
Details
A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up an 'easy' handle in the `Curl_close()` function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct.
Aliases
Aliases
CVE-2018-16840


To clipboard 

{
  "GSD": {
    "alias": "CVE-2018-16840",
    "description": "A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up an \u0027easy\u0027 handle in the `Curl_close()` function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct.",
    "id": "GSD-2018-16840",
    "references": [
      "https://www.suse.com/security/cve/CVE-2018-16840.html",
      "https://access.redhat.com/errata/RHSA-2019:1543",
      "https://ubuntu.com/security/CVE-2018-16840",
      "https://security.archlinux.org/CVE-2018-16840",
      "https://alas.aws.amazon.com/cve/html/CVE-2018-16840.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2018-16840"
      ],
      "details": "A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up an \u0027easy\u0027 handle in the `Curl_close()` function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct.",
      "id": "GSD-2018-16840",
      "modified": "2023-12-13T01:22:26.090176Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
    "cve.org": {
      "CVE_data_meta": {
        "ASSIGNER": "secalert@redhat.com",
        "ID": "CVE-2018-16840",
        "STATE": "PUBLIC"
      },
      "affects": {
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          "vendor_data": [
            {
              "product": {
                "product_data": [
                  {
                    "product_name": "curl",
                    "version": {
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                        {
                          "version_value": "from 7.59.0 to 7.61.1"
                        }
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                  }
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          }
        ]
      },
      "impact": {
        "cvss": [
          [
            {
              "vectorString": "4.3/CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
              "version": "3.0"
            }
          ]
        ]
      },
      "problemtype": {
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              {
                "lang": "eng",
                "value": "CWE-416"
              }
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      },
      "references": {
        "reference_data": [
          {
            "name": "GLSA-201903-03",
            "refsource": "GENTOO",
            "url": "https://security.gentoo.org/glsa/201903-03"
          },
          {
            "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16840",
            "refsource": "CONFIRM",
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16840"
          },
          {
            "name": "https://github.com/curl/curl/commit/81d135d67155c5295b1033679c606165d4e28f3f",
            "refsource": "CONFIRM",
            "url": "https://github.com/curl/curl/commit/81d135d67155c5295b1033679c606165d4e28f3f"
          },
          {
            "name": "1042013",
            "refsource": "SECTRACK",
            "url": "http://www.securitytracker.com/id/1042013"
          },
          {
            "name": "https://curl.haxx.se/docs/CVE-2018-16840.html",
            "refsource": "MISC",
            "url": "https://curl.haxx.se/docs/CVE-2018-16840.html"
          },
          {
            "name": "USN-3805-1",
            "refsource": "UBUNTU",
            "url": "https://usn.ubuntu.com/3805-1/"
          }
        ]
      }
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "7.61.1",
                "versionStartIncluding": "7.59.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
        "CVE_data_meta": {
          "ASSIGNER": "secalert@redhat.com",
          "ID": "CVE-2018-16840"
        },
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        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
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              "value": "A heap use-after-free flaw was found in curl versions from 7.59.0 through 7.61.1 in the code related to closing an easy handle. When closing and cleaning up an \u0027easy\u0027 handle in the `Curl_close()` function, the library code first frees a struct (without nulling the pointer) and might then subsequently erroneously write to a struct field within that already freed struct."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-416"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/curl/curl/commit/81d135d67155c5295b1033679c606165d4e28f3f",
              "refsource": "CONFIRM",
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              "url": "https://github.com/curl/curl/commit/81d135d67155c5295b1033679c606165d4e28f3f"
            },
            {
              "name": "https://curl.haxx.se/docs/CVE-2018-16840.html",
              "refsource": "MISC",
              "tags": [
                "Patch",
                "Vendor Advisory"
              ],
              "url": "https://curl.haxx.se/docs/CVE-2018-16840.html"
            },
            {
              "name": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16840",
              "refsource": "CONFIRM",
              "tags": [
                "Issue Tracking",
                "Third Party Advisory"
              ],
              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-16840"
            },
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            },
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            },
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              "name": "GLSA-201903-03",
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              "tags": [
                "Third Party Advisory"
              ],
              "url": "https://security.gentoo.org/glsa/201903-03"
            }
          ]
        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "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,
          "severity": "HIGH",
          "userInteractionRequired": false
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "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"
          },
          "exploitabilityScore": 3.9,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2019-10-09T23:36Z",
      "publishedDate": "2018-10-31T18:29Z"
    }
  }
}


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