ubuntu-cve-2017-0903
Vulnerability from osv_ubuntu
Published
2017-10-11 00:00
Modified
2026-04-22 07:38
Summary
Details

RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.

Severity
9.8 (Critical)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libruby2.0",
            "binary_version": "2.0.0.484-1ubuntu2.10"
          },
          {
            "binary_name": "ruby2.0",
            "binary_version": "2.0.0.484-1ubuntu2.10"
          },
          {
            "binary_name": "ruby2.0-tcltk",
            "binary_version": "2.0.0.484-1ubuntu2.10"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:14.04:LTS",
        "name": "ruby2.0",
        "purl": "pkg:deb/ubuntu/ruby2.0@2.0.0.484-1ubuntu2.10?arch=source\u0026distro=trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.0.0.484-1ubuntu2.10"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.0.0.299-2",
        "2.0.0.343-1",
        "2.0.0.343-1ubuntu1",
        "2.0.0.353-1",
        "2.0.0.353-1ubuntu1",
        "2.0.0.484-1ubuntu1",
        "2.0.0.484-1ubuntu2",
        "2.0.0.484-1ubuntu2.1",
        "2.0.0.484-1ubuntu2.2",
        "2.0.0.484-1ubuntu2.4",
        "2.0.0.484-1ubuntu2.5",
        "2.0.0.484-1ubuntu2.6",
        "2.0.0.484-1ubuntu2.8",
        "2.0.0.484-1ubuntu2.9"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "jruby",
            "binary_version": "1.5.6-9+deb8u2build0.14.04.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:14.04:LTS",
        "name": "jruby",
        "purl": "pkg:deb/ubuntu/jruby@1.5.6-9+deb8u2build0.14.04.1~esm2?arch=source\u0026distro=esm-infra-legacy/trusty"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.5.6-5ubuntu1",
        "1.5.6-6",
        "1.5.6-7",
        "1.5.6-9+deb8u2build0.14.04.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libruby2.3",
            "binary_version": "2.3.1-2~16.04.6"
          },
          {
            "binary_name": "ruby2.3",
            "binary_version": "2.3.1-2~16.04.6"
          },
          {
            "binary_name": "ruby2.3-tcltk",
            "binary_version": "2.3.1-2~16.04.6"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "ruby2.3",
        "purl": "pkg:deb/ubuntu/ruby2.3@2.3.1-2~16.04.6?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.3.1-2~16.04.6"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.3.0-1",
        "2.3.0-2",
        "2.3.0-4ubuntu2",
        "2.3.0-4ubuntu3",
        "2.3.0-5ubuntu1",
        "2.3.1-2~16.04",
        "2.3.1-2~16.04.2",
        "2.3.1-2~16.04.4",
        "2.3.1-2~16.04.5"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "jruby",
            "binary_version": "1.7.22-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:16.04:LTS",
        "name": "jruby",
        "purl": "pkg:deb/ubuntu/jruby@1.7.22-1ubuntu1?arch=source\u0026distro=xenial"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.7.21-2ubuntu4",
        "1.7.22-1ubuntu1"
      ]
    }
  ],
  "aliases": [],
  "details": "RubyGems versions between 2.0.0 and 2.6.13 are vulnerable to a possible remote code execution vulnerability. YAML deserialization of gem specifications can bypass class white lists. Specially crafted serialized objects can possibly be used to escalate to remote code execution.",
  "id": "UBUNTU-CVE-2017-0903",
  "modified": "2026-04-22T07:38:08Z",
  "published": "2017-10-11T00:00:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2017-0903"
    },
    {
      "type": "REPORT",
      "url": "http://blog.rubygems.org/2017/10/09/2.6.14-released.html"
    },
    {
      "type": "REPORT",
      "url": "http://blog.rubygems.org/2017/10/09/unsafe-object-deserialization-vulnerability.html"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/rubygems/rubygems/commit/510b1638ac9bba3ceb7a5d73135dafff9e5bab49"
    },
    {
      "type": "REPORT",
      "url": "https://hackerone.com/reports/274990"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3553-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3685-1"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-3685-2"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2017-0903"
    }
  ],
  "related": [
    "USN-3553-1",
    "USN-3685-1",
    "USN-3685-2"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2017-0903"
  ]
}



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Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.