gsd-2016-7798
Vulnerability from gsd
Modified
2017-10-24 00:00
Details
The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism.
Aliases
Aliases
CVE-2016-7798


To clipboard 

{
  "GSD": {
    "alias": "CVE-2016-7798",
    "description": "The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism.",
    "id": "GSD-2016-7798",
    "references": [
      "https://www.suse.com/security/cve/CVE-2016-7798.html",
      "https://www.debian.org/security/2017/dsa-3966",
      "https://ubuntu.com/security/CVE-2016-7798",
      "https://advisories.mageia.org/CVE-2016-7798.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2016-7798.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "openssl",
            "purl": "pkg:gem/openssl"
          }
        }
      ],
      "aliases": [
        "CVE-2016-7798",
        "GHSA-6h88-qjpv-p32m"
      ],
      "details": "The openssl gem for Ruby uses the same initialization vector (IV) in\nGCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for\ncontext-dependent attackers to bypass the encryption protection mechanism.\n",
      "id": "GSD-2016-7798",
      "modified": "2017-10-24T00:00:00.000Z",
      "published": "2017-10-24T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://github.com/ruby/openssl/issues/49"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 5.0,
          "type": "CVSS_V2"
        },
        {
          "score": 7.5,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Incorrect handling of initialization vector in the GCM mode in OpenSSL"
    }
  },
  "namespaces": {
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        "reference_data": [
          {
            "name": "[oss-security] 20160930 Re: CVE Request - Ruby OpenSSL Library - IV Reuse in GCM Mode",
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          },
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    },
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      "cve": "2016-7798",
      "cvss_v2": 5.0,
      "cvss_v3": 7.5,
      "date": "2017-10-24",
      "description": "The openssl gem for Ruby uses the same initialization vector (IV) in\nGCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for\ncontext-dependent attackers to bypass the encryption protection mechanism.\n",
      "gem": "openssl",
      "ghsa": "6h88-qjpv-p32m",
      "patched_versions": [
        "\u003e= 2.0.0"
      ],
      "title": "Incorrect handling of initialization vector in the GCM mode in OpenSSL",
      "url": "https://github.com/ruby/openssl/issues/49"
    },
    "gitlab.com": {
      "advisories": [
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          "affected_versions": "All versions before 2.0.0",
          "cvss_v2": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
          "cwe_ids": [
            "CWE-1035",
            "CWE-326",
            "CWE-937"
          ],
          "date": "2018-07-15",
          "description": "The openssl gem for Ruby uses the same initialization vector (IV) in GCM Mode (aes-*-gcm) when the IV is set before the key, which makes it easier for context-dependent attackers to bypass the encryption protection mechanism.",
          "fixed_versions": [
            "2.0.0"
          ],
          "identifier": "CVE-2016-7798",
          "identifiers": [
            "CVE-2016-7798"
          ],
          "not_impacted": "All versions after 2.0.0",
          "package_slug": "gem/openssl",
          "pubdate": "2017-01-30",
          "solution": "Upgrade to version 2.0.0",
          "title": "Cryptographic Issues",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2016-7798",
            "http://www.securityfocus.com/bid/93031"
          ],
          "uuid": "6612fdaf-8fde-48d1-b284-c779f95d7895"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
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        "nodes": [
          {
            "children": [],
            "cpe_match": [
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                "cpe23Uri": "cpe:2.3:a:ruby-lang:openssl:*:*:*:*:*:ruby:*:*",
                "cpe_name": [],
                "versionEndExcluding": "2.0.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*",
                "cpe_name": [],
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              },
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
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      },
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            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
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                  "value": "CWE-326"
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        "references": {
          "reference_data": [
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      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": true,
          "cvssV2": {
            "accessComplexity": "LOW",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 5.0,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "NONE",
            "vectorString": "AV:N/AC:L/Au:N/C:P/I:N/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 10.0,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": false
        },
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            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
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          "impactScore": 3.6
        }
      },
      "lastModifiedDate": "2020-11-05T14:56Z",
      "publishedDate": "2017-01-30T22:59Z"
    }
  }
}


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