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jruby, ruby1.9.1 and 2 more products — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2017-17742

Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 allows an HTTP Response Splitting attack. An attacker can inject a crafted key and value into an HTTP response for the HTTP server of WEBrick.

Products
jruby, ruby1.9.1, ruby2.0, ruby2.3
Affected versions
1.5.6-5ubuntu1, 1.5.6-6, 1.5.6-7, 1.7.21-2ubuntu4, 1.7.22-1ubuntu1, 1.9.3.194-8.1ubuntu2, 1.9.3.448-1ubuntu1, 1.9.3.448-1ubuntu2, 1.9.3.484-1ubuntu1, 1.9.3.484-1ubuntu2, 1.9.3.484-2ubuntu1, 1.9.3.484-2ubuntu1.1, 1.9.3.484-2ubuntu1.10, 1.9.3.484-2ubuntu1.11, 1.9.3.484-2ubuntu1.2, 1.9.3.484-2ubuntu1.3, 1.9.3.484-2ubuntu1.5, 1.9.3.484-2ubuntu1.6, 1.9.3.484-2ubuntu1.7, 1.9.3.484-2ubuntu1.8, 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, 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, 2.3.1-2~16.04.6, 2.3.1-2~16.04.7, 2.3.1-2~16.04.9, 9.1.13.0-1, 9.1.17.0-1~18.04, 9.1.17.0-3, 9.1.17.0-3build5, 9.1.17.0-3build6, 9.3.9.0+ds-1, 9.4.14.0+ds-1, 9.4.5.0+ds-1, 9.4.5.0+ds-1ubuntu1, 9.4.6.0+ds-1ubuntu3, 9.4.8.0+ds-2ubuntu1, 9.4.8.0+ds-3ubuntu1
Fixed versions
1.5.6-9+deb8u2build0.14.04.1~esm2, 1.9.3.484-2ubuntu1.12, 2.0.0.484-1ubuntu2.10, 2.3.1-2~16.04.10
CVEs
CVE-2017-17742
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 00:23 UTC · Revision 1

Source evidence

UBUNTU-CVE-2017-17742

core-osv · Original source

Published 3 Apr 2018, 00:00 UTC

Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 allows an HTTP Response Splitting attack. An attacker can inject a crafted key and value into an HTTP response for the HTTP server of WEBrick.

osv:UBUNTU-CVE-2017-17742

ruby1.9.1

Fixed versions: 1.9.3.484-2ubuntu1.12

ruby2.0

Fixed versions: 2.0.0.484-1ubuntu2.10

jruby

Fixed versions: 1.5.6-9+deb8u2build0.14.04.1~esm2

ruby2.3

Fixed versions: 2.3.1-2~16.04.10

jruby

Fixed versions: Not specified

jruby

Fixed versions: Not specified

jruby

Fixed versions: Not specified

jruby

Fixed versions: Not specified

jruby

Fixed versions: Not specified

jruby

Fixed versions: Not specified

jruby

Fixed versions: Not specified

Complete source record
{
  "id": "d03f39dcd6474900f2d1444c1b90847f239e5f468a4948a70921c97f138d5ccd",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2017-17742",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2017-17742",
    "summary": "Ruby before 2.2.10, 2.3.x before 2.3.7, 2.4.x before 2.4.4, 2.5.x before 2.5.1, and 2.6.0-preview1 allows an HTTP Response Splitting attack. An attacker can inject a crafted key and value into an HTTP response for the HTTP server of WEBrick.",
    "evidence": "osv:UBUNTU-CVE-2017-17742",
    "products": [
      {
        "name": {
          "value": "ruby1.9.1",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.9.3.484-2ubuntu1.12",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1.9.3.194-8.1ubuntu2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.448-1ubuntu1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.448-1ubuntu2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-1ubuntu1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-1ubuntu2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-2ubuntu1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-2ubuntu1.1",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-2ubuntu1.2",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-2ubuntu1.3",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-2ubuntu1.5",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-2ubuntu1.6",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-2ubuntu1.7",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-2ubuntu1.8",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-2ubuntu1.10",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "1.9.3.484-2ubuntu1.11",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "ruby2.0",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.0.0.484-1ubuntu2.10",
            "evidence": "/affected/1/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "2.0.0.299-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.343-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.343-1ubuntu1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.353-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.353-1ubuntu1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.484-1ubuntu1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.484-1ubuntu2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.484-1ubuntu2.1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.484-1ubuntu2.2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.484-1ubuntu2.4",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.484-1ubuntu2.5",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.484-1ubuntu2.6",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.484-1ubuntu2.8",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0.484-1ubuntu2.9",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "jruby",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "1.5.6-9+deb8u2build0.14.04.1~esm2",
            "evidence": "/affected/2/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "1.5.6-5ubuntu1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.5.6-6",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "1.5.6-7",
            "evidence": "/affected/2/versions"
          }
        ]
      },
      {
        "name": {
          "value": "ruby2.3",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.3.1-2~16.04.10",
            "evidence": "/affected/3/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "2.3.0-1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.3.0-2",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.3.0-4ubuntu2",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.3.0-4ubuntu3",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.3.0-5ubuntu1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.3.1-2~16.04",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.3.1-2~16.04.2",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.3.1-2~16.04.4",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.3.1-2~16.04.5",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.3.1-2~16.04.6",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.3.1-2~16.04.7",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "2.3.1-2~16.04.9",
            "evidence": "/affected/3/versions"
          }
        ]
      },
      {
        "name": {
          "value": "jruby",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.7.21-2ubuntu4",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "1.7.22-1ubuntu1",
            "evidence": "/affected/4/versions"
          }
        ]
      },
      {
        "name": {
          "value": "jruby",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "9.1.13.0-1",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "9.1.17.0-1~18.04",
            "evidence": "/affected/5/versions"
          }
        ]
      },
      {
        "name": {
          "value": "jruby",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "9.1.17.0-3",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "9.1.17.0-3build5",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "9.1.17.0-3build6",
            "evidence": "/affected/6/versions"
          }
        ]
      },
      {
        "name": {
          "value": "jruby",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "9.3.9.0+ds-1",
            "evidence": "/affected/7/versions"
          },
          {
            "value": "9.4.5.0+ds-1",
            "evidence": "/affected/7/versions"
          },
          {
            "value": "9.4.5.0+ds-1ubuntu1",
            "evidence": "/affected/7/versions"
          },
          {
            "value": "9.4.6.0+ds-1ubuntu3",
            "evidence": "/affected/7/versions"
          }
        ]
      },
      {
        "name": {
          "value": "jruby",
          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "9.4.8.0+ds-2ubuntu1",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "9.4.8.0+ds-3ubuntu1",
            "evidence": "/affected/8/versions"
          }
        ]
      },
      {
        "name": {
          "value": "jruby",
          "evidence": "/affected/9/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "9.4.8.0+ds-3ubuntu1",
            "evidence": "/affected/9/versions"
          },
          {
            "value": "9.4.14.0+ds-1",
            "evidence": "/affected/9/versions"
          }
        ]
      },
      {
        "name": {
          "value": "jruby",
          "evidence": "/affected/10/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "9.4.8.0+ds-3ubuntu1",
            "evidence": "/affected/10/versions"
          }
        ]
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "UBUNTU-CVE-2017-17742",
      "aliases": [
        "UBUNTU-CVE-2017-17742"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.9.3.484-2ubuntu1.12"
                }
              ]
            }
          ],
          "package": {
            "name": "ruby1.9.1",
            "purl": "pkg:deb/ubuntu/ruby1.9.1?arch=source&distro=trusty",
            "ecosystem": "Ubuntu:14.04:LTS"
          },
          "versions": [
            "1.9.3.194-8.1ubuntu2",
            "1.9.3.448-1ubuntu1",
            "1.9.3.448-1ubuntu2",
            "1.9.3.484-1ubuntu1",
            "1.9.3.484-1ubuntu2",
            "1.9.3.484-2ubuntu1",
            "1.9.3.484-2ubuntu1.1",
            "1.9.3.484-2ubuntu1.2",
            "1.9.3.484-2ubuntu1.3",
            "1.9.3.484-2ubuntu1.5",
            "1.9.3.484-2ubuntu1.6",
            "1.9.3.484-2ubuntu1.7",
            "1.9.3.484-2ubuntu1.8",
            "1.9.3.484-2ubuntu1.10",
            "1.9.3.484-2ubuntu1.11"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-17742.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libruby1.9.1",
                "binary_version": "1.9.3.484-2ubuntu1.12"
              },
              {
                "binary_name": "libtcltk-ruby1.9.1",
                "binary_version": "1.9.3.484-2ubuntu1.12"
              },
              {
                "binary_name": "ri1.9.1",
                "binary_version": "1.9.3.484-2ubuntu1.12"
              },
              {
                "binary_name": "ruby1.9.1",
                "binary_version": "1.9.3.484-2ubuntu1.12"
              },
              {
                "binary_name": "ruby1.9.1-examples",
                "binary_version": "1.9.3.484-2ubuntu1.12"
              },
              {
                "binary_name": "ruby1.9.1-full",
                "binary_version": "1.9.3.484-2ubuntu1.12"
              },
              {
                "binary_name": "ruby1.9.3",
                "binary_version": "1.9.3.484-2ubuntu1.12"
              }
            ],
            "availability": "No subscription required"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.0.0.484-1ubuntu2.10"
                }
              ]
            }
          ],
          "package": {
            "name": "ruby2.0",
            "purl": "pkg:deb/ubuntu/ruby2.0?arch=source&distro=trusty",
            "ecosystem": "Ubuntu:14.04:LTS"
          },
          "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"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-17742.json"
          },
          "ecosystem_specific": {
            "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"
              }
            ],
            "availability": "No subscription required"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "1.5.6-9+deb8u2build0.14.04.1~esm2"
                }
              ]
            }
          ],
          "package": {
            "name": "jruby",
            "purl": "pkg:deb/ubuntu/jruby?arch=source&distro=trusty%2Fesm",
            "ecosystem": "Ubuntu:Pro:14.04:LTS"
          },
          "versions": [
            "1.5.6-5ubuntu1",
            "1.5.6-6",
            "1.5.6-7"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-17742.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "jruby",
                "binary_version": "1.5.6-9+deb8u2build0.14.04.1~esm2"
              }
            ],
            "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "2.3.1-2~16.04.10"
                }
              ]
            }
          ],
          "package": {
            "name": "ruby2.3",
            "purl": "pkg:deb/ubuntu/ruby2.3?arch=source&distro=xenial",
            "ecosystem": "Ubuntu:16.04:LTS"
          },
          "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",
            "2.3.1-2~16.04.6",
            "2.3.1-2~16.04.7",
            "2.3.1-2~16.04.9"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-17742.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libruby2.3",
                "binary_version": "2.3.1-2~16.04.10"
              },
              {
                "binary_name": "ruby2.3",
                "binary_version": "2.3.1-2~16.04.10"
              },
              {
                "binary_name": "ruby2.3-tcltk",
                "binary_version": "2.3.1-2~16.04.10"
              }
            ],
            "availability": "No subscription required"
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "jruby",
            "purl": "pkg:deb/ubuntu/jruby?arch=source&distro=xenial",
            "ecosystem": "Ubuntu:16.04:LTS"
          },
          "versions": [
            "1.7.21-2ubuntu4",
            "1.7.22-1ubuntu1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2017/UBUNTU-CVE-2017-17742.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "jruby",
                "binary_version": "1.7.22-1ubuntu1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "jruby",
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        }
      ],
      "modified": "2026-10-17T12:53:37.782699390Z",
      "provider": "osv",
      "upstream": [
        "CVE-2017-17742"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2017-17742",
        "https://www.ruby-lang.org/en/news/2018/03/28/http-response-splitting-in-webrick-cve-2017-17742/",
        "https://ubuntu.com/security/notices/USN-3685-1",
        "https://www.cve.org/CVERecord?id=CVE-2017-17742"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2017-17742",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 353453,
  "published_at": "2018-04-03T00:00:00+00:00"
}