gsd-2019-8324
Vulnerability from gsd
Modified
2019-03-05 00:00
Details
An issue was discovered in RubyGems 2.6 and later through 3.0.2. A crafted gem with a multi-line name is not handled correctly. Therefore, an attacker could inject arbitrary code to the stub line of gemspec, which is eval-ed by code in ensure_loadable_spec during the preinstall check.
Aliases
Aliases
CVE-2019-8324


To clipboard 

{
  "GSD": {
    "alias": "CVE-2019-8324",
    "description": "An issue was discovered in RubyGems 2.6 and later through 3.0.2. A crafted gem with a multi-line name is not handled correctly. Therefore, an attacker could inject arbitrary code to the stub line of gemspec, which is eval-ed by code in ensure_loadable_spec during the preinstall check.",
    "id": "GSD-2019-8324",
    "references": [
      "https://www.suse.com/security/cve/CVE-2019-8324.html",
      "https://www.debian.org/security/2019/dsa-4433",
      "https://access.redhat.com/errata/RHSA-2020:2769",
      "https://access.redhat.com/errata/RHSA-2019:1972",
      "https://access.redhat.com/errata/RHSA-2019:1429",
      "https://access.redhat.com/errata/RHSA-2019:1235",
      "https://access.redhat.com/errata/RHSA-2019:1151",
      "https://access.redhat.com/errata/RHSA-2019:1150",
      "https://access.redhat.com/errata/RHSA-2019:1148",
      "https://ubuntu.com/security/CVE-2019-8324",
      "https://advisories.mageia.org/CVE-2019-8324.html",
      "https://alas.aws.amazon.com/cve/html/CVE-2019-8324.html",
      "https://linux.oracle.com/cve/CVE-2019-8324.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "affected": [
        {
          "package": {
            "ecosystem": "RubyGems",
            "name": "rubygems-update",
            "purl": "pkg:gem/rubygems-update"
          }
        }
      ],
      "aliases": [
        "CVE-2019-8324",
        "GHSA-76wm-422q-92mq"
      ],
      "details": "An issue was discovered in RubyGems 2.6 and later through 3.0.2. A crafted\ngem with a multi-line name is not handled correctly. Therefore, an attacker\ncould inject arbitrary code to the stub line of gemspec, which is eval-ed by\ncode in ensure_loadable_spec during the preinstall check.\n",
      "id": "GSD-2019-8324",
      "modified": "2019-03-05T00:00:00.000Z",
      "published": "2019-03-05T00:00:00.000Z",
      "references": [
        {
          "type": "WEB",
          "url": "https://blog.rubygems.org/2019/03/05/security-advisories-2019-03.html"
        }
      ],
      "schema_version": "1.4.0",
      "severity": [
        {
          "score": 8.8,
          "type": "CVSS_V3"
        }
      ],
      "summary": "Installing a malicious gem may lead to arbitrary code execution"
    }
  },
  "namespaces": {
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        "ID": "CVE-2019-8324",
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                    "version": {
                      "version_data": [
                        {
                          "version_value": "n/a"
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          }
        ]
      },
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                "value": "n/a"
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        "reference_data": [
          {
            "name": "https://hackerone.com/reports/328571",
            "refsource": "MISC",
            "url": "https://hackerone.com/reports/328571"
          },
          {
            "name": "openSUSE-SU-2019:1771",
            "refsource": "SUSE",
            "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html"
          },
          {
            "name": "RHSA-2019:1972",
            "refsource": "REDHAT",
            "url": "https://access.redhat.com/errata/RHSA-2019:1972"
          },
          {
            "name": "[debian-lts-announce] 20200816 [SECURITY] [DLA 2330-1] jruby security update",
            "refsource": "MLIST",
            "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html"
          }
        ]
      }
    },
    "github.com/rubysec/ruby-advisory-db": {
      "cve": "2019-8324",
      "cvss_v3": 8.8,
      "date": "2019-03-05",
      "description": "An issue was discovered in RubyGems 2.6 and later through 3.0.2. A crafted\ngem with a multi-line name is not handled correctly. Therefore, an attacker\ncould inject arbitrary code to the stub line of gemspec, which is eval-ed by\ncode in ensure_loadable_spec during the preinstall check.\n",
      "gem": "rubygems-update",
      "ghsa": "76wm-422q-92mq",
      "library": "rubygems",
      "patched_versions": [
        "\u003e= 3.0.3",
        "~\u003e 2.7.9"
      ],
      "title": "Installing a malicious gem may lead to arbitrary code execution",
      "unaffected_versions": [
        "\u003c 2.6"
      ],
      "url": "https://blog.rubygems.org/2019/03/05/security-advisories-2019-03.html"
    },
    "gitlab.com": {
      "advisories": [
        {
          "affected_range": "\u003e=2.6.0 \u003c=3.0.2",
          "affected_versions": "All versions starting from 2.6.0 up to 3.0.2",
          "cvss_v2": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
          "cvss_v3": "CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
          "cwe_ids": [
            "CWE-1035",
            "CWE-937",
            "CWE-94"
          ],
          "date": "2019-07-21",
          "description": "A crafted gem with a multi-line name is not handled correctly. Therefore, an attacker could inject arbitrary code to the stub line of gemspec, which is evaluated by `ensure_loadable_spec` during the pre-installation check.",
          "fixed_versions": [
            "3.0.3"
          ],
          "identifier": "CVE-2019-8324",
          "identifiers": [
            "CVE-2019-8324"
          ],
          "not_impacted": "All versions before 2.6.0, all versions after 3.0.2",
          "package_slug": "gem/rubygems-update",
          "pubdate": "2019-06-17",
          "solution": "Upgrade to version 3.0.3 or above.",
          "title": "Improper Input Validation",
          "urls": [
            "https://nvd.nist.gov/vuln/detail/CVE-2019-8324"
          ],
          "uuid": "b8a3d91c-cb2a-47e3-ba4c-5a4a5b2f7104"
        }
      ]
    },
    "nvd.nist.gov": {
      "configurations": {
        "CVE_data_version": "4.0",
        "nodes": [
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:a:rubygems:rubygems:*:*:*:*:*:*:*:*",
                "cpe_name": [],
                "versionEndIncluding": "3.0.2",
                "versionStartIncluding": "2.6.0",
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:opensuse:leap:15.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              },
              {
                "cpe23Uri": "cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          },
          {
            "children": [],
            "cpe_match": [
              {
                "cpe23Uri": "cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*",
                "cpe_name": [],
                "vulnerable": true
              }
            ],
            "operator": "OR"
          }
        ]
      },
      "cve": {
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          "ASSIGNER": "cve@mitre.org",
          "ID": "CVE-2019-8324"
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        "description": {
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              "value": "An issue was discovered in RubyGems 2.6 and later through 3.0.2. A crafted gem with a multi-line name is not handled correctly. Therefore, an attacker could inject arbitrary code to the stub line of gemspec, which is eval-ed by code in ensure_loadable_spec during the preinstall check."
            }
          ]
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "en",
                  "value": "CWE-94"
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        "references": {
          "reference_data": [
            {
              "name": "https://hackerone.com/reports/328571",
              "refsource": "MISC",
              "tags": [
                "Permissions Required",
                "Third Party Advisory"
              ],
              "url": "https://hackerone.com/reports/328571"
            },
            {
              "name": "openSUSE-SU-2019:1771",
              "refsource": "SUSE",
              "tags": [
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              ],
              "url": "http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00036.html"
            },
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              "name": "RHSA-2019:1972",
              "refsource": "REDHAT",
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                "Third Party Advisory"
              ],
              "url": "https://access.redhat.com/errata/RHSA-2019:1972"
            },
            {
              "name": "[debian-lts-announce] 20200816 [SECURITY] [DLA 2330-1] jruby security update",
              "refsource": "MLIST",
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                "Third Party Advisory"
              ],
              "url": "https://lists.debian.org/debian-lts-announce/2020/08/msg00027.html"
            }
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        }
      },
      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
            "accessComplexity": "MEDIUM",
            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "PARTIAL",
            "baseScore": 6.8,
            "confidentialityImpact": "PARTIAL",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:P/I:P/A:P",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 6.4,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "HIGH",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 5.9
        }
      },
      "lastModifiedDate": "2020-08-24T17:37Z",
      "publishedDate": "2019-06-17T19:15Z"
    }
  }
}


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