Vulnerability-Lookup

ubuntu-cve-2020-11076

Vulnerability from osv_ubuntu

Published

2020-05-22 15:15

Modified

2025-09-08 16:46

Summary

Details

In Puma (RubyGem) before 4.3.4 and 3.12.5, an attacker could smuggle an HTTP response, by using an invalid transfer-encoding header. The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.

Severity

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

7.5 (High)


                    
                      CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2020-11076	REPORT
	https://github.com/puma/puma/security/advisories/…	REPORT
	https://github.com/puma/puma/commit/f24d5521295a2…	REPORT
	https://github.com/puma/puma/blob/master/History.…	REPORT
	https://ubuntu.com/security/notices/USN-6682-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2020-11076	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "puma",
            "binary_version": "3.12.4-1ubuntu2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "puma",
        "purl": "pkg:deb/ubuntu/puma@3.12.4-1ubuntu2+esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.12.4-1ubuntu2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.12.0-2ubuntu1",
        "3.12.0-4ubuntu1",
        "3.12.4-1ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "In Puma (RubyGem) before 4.3.4 and 3.12.5, an attacker could smuggle an HTTP response, by using an invalid transfer-encoding header. The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.",
  "id": "UBUNTU-CVE-2020-11076",
  "modified": "2025-09-08T16:46:04Z",
  "published": "2020-05-22T15:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-11076"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/puma/puma/security/advisories/GHSA-x7jg-6pwg-fx5h"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/puma/puma/commit/f24d5521295a2152c286abb0a45a1e1e2bd275bd"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/puma/puma/blob/master/History.md#434435-and-31253126--2020-05-22"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6682-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-11076"
    }
  ],
  "related": [
    "USN-6682-1"
  ],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2020-11076"
  ]
}

CVE-2020-11076 (GCVE-0-2020-11076)

Vulnerability from cvelistv5 – Published: 2020-05-22 14:50 – Updated: 2024-08-04 11:21

Title

HTTP Smuggling via Transfer-Encoding Header in Puma

Summary

In Puma (RubyGem) before 4.3.4 and 3.12.5, an attacker could smuggle an HTTP response, by using an invalid transfer-encoding header. The problem has been fixed in Puma 3.12.5 and Puma 4.3.4.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

CWE

CWE-444 - Inconsistent Interpretation of HTTP Requests ('HTTP Request Smuggling')

Assigner

GitHub_M

References

7 references

URL	Tags
https://github.com/puma/puma/security/advisories/…	x_refsource_CONFIRM
https://github.com/puma/puma/blob/master/History.…	x_refsource_MISC
https://github.com/puma/puma/commit/f24d5521295a2…	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://lists.fedoraproject.org/archives/list/pac…	vendor-advisoryx_refsource_FEDORA
https://lists.debian.org/debian-lts-announce/2020…	mailing-listx_refsource_MLIST

Impacted products

1 product

Vendor	Product	Version
puma	puma	Affected: < 3.12.5 Affected: >= 4.0.0, < 4.3.4

Show details on NVD website

JSON

To clipboard

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        },
        {
          "name": "[debian-lts-announce] 20201007 [SECURITY] [DLA 2398-1] puma security update",
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          "url": "https://lists.debian.org/debian-lts-announce/2020/10/msg00009.html"
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        "discovery": "UNKNOWN"
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        },
        "affects": {
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    "datePublished": "2020-05-22T14:50:12.000Z",
    "dateReserved": "2020-03-30T00:00:00.000Z",
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}

usn-6682-1

Vulnerability from osv_ubuntu

Published

2024-03-07 14:00

Modified

2026-04-27 14:11

Summary

puma vulnerabilities

Details

ZeddYu Lu discovered that Puma incorrectly handled parsing certain headers. A remote attacker could possibly use this issue to perform an HTTP Request Smuggling attack. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-11076)

It was discovered that Puma incorrectly handled parsing certain headers. A remote attacker could possibly use this issue to perform an HTTP Request Smuggling attack. This issue only affected Ubuntu 20.04 LTS. (CVE-2020-11077)

Jean Boussier discovered that Puma might not always release resources properly after handling HTTP requests. A remote attacker could possibly use this issue to read sensitive information. (CVE-2022-23634)

It was discovered that Puma incorrectly handled certain malformed headers. A remote attacker could use this issue to perform an HTTP Request Smuggling attack. (CVE-2022-24790)

Ben Kallus discovered that Puma incorrectly handled parsing certain headers. A remote attacker could use this issue to perform an HTTP Request Smuggling attack. (CVE-2023-40175)

Bartek Nowotarski discovered that Puma incorrectly handled parsing certain encoded content. A remote attacker could possibly use this to cause a denial of service. (CVE-2024-21647)

References

URL

Type

	https://ubuntu.com/security/notices/USN-6682-1	ADVISORY
	https://ubuntu.com/security/CVE-2020-11076	REPORT
	https://ubuntu.com/security/CVE-2020-11077	REPORT
	https://ubuntu.com/security/CVE-2022-23634	REPORT
	https://ubuntu.com/security/CVE-2022-24790	REPORT
	https://ubuntu.com/security/CVE-2023-40175	REPORT
	https://ubuntu.com/security/CVE-2024-21647	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2020-11076",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2020-11077",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-23634",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-24790",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-40175",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-21647",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "puma",
            "binary_version": "3.12.4-1ubuntu2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "puma",
        "purl": "pkg:deb/ubuntu/puma@3.12.4-1ubuntu2+esm1?arch=source\u0026distro=esm-apps/focal"
      },
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            },
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.12.0-2ubuntu1",
        "3.12.0-4ubuntu1",
        "3.12.4-1ubuntu2"
      ]
    },
    {
      "database_specific": {
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              "id": "CVE-2022-23634",
              "severity": [
                {
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                },
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                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
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                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2022-24790",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2023-40175",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            },
            {
              "id": "CVE-2024-21647",
              "severity": [
                {
                  "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:Pro:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "Available with Ubuntu Pro: https://ubuntu.com/pro",
        "binaries": [
          {
            "binary_name": "puma",
            "binary_version": "5.5.2-2ubuntu2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "puma",
        "purl": "pkg:deb/ubuntu/puma@5.5.2-2ubuntu2+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "5.5.2-2ubuntu2+esm1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "4.3.6-1ubuntu4",
        "5.5.2-2ubuntu2"
      ]
    }
  ],
  "aliases": [],
  "details": "ZeddYu Lu discovered that Puma incorrectly handled parsing certain headers.\nA remote attacker could possibly use this issue to perform an HTTP Request\nSmuggling attack. This issue only affected Ubuntu 20.04 LTS.\n(CVE-2020-11076)\n\nIt was discovered that Puma incorrectly handled parsing certain headers.\nA remote attacker could possibly use this issue to perform an HTTP Request\nSmuggling attack. This issue only affected Ubuntu 20.04 LTS.\n(CVE-2020-11077)\n\nJean Boussier discovered that Puma might not always release resources\nproperly after handling HTTP requests. A remote attacker could possibly\nuse this issue to read sensitive information. (CVE-2022-23634)\n\nIt was discovered that Puma incorrectly handled certain malformed headers.\nA remote attacker could use this issue to perform an HTTP Request Smuggling\nattack. (CVE-2022-24790)\n\nBen Kallus discovered that Puma incorrectly handled parsing certain headers.\nA remote attacker could use this issue to perform an HTTP Request Smuggling\nattack. (CVE-2023-40175)\n\nBartek Nowotarski discovered that Puma incorrectly handled parsing certain\nencoded content. A remote attacker could possibly use this to cause a\ndenial of service. (CVE-2024-21647)\n",
  "id": "USN-6682-1",
  "modified": "2026-04-27T14:11:32Z",
  "published": "2024-03-07T14:00:06Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6682-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-11076"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2020-11077"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-23634"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2022-24790"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2023-40175"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-21647"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "puma vulnerabilities",
  "upstream": [
    "UBUNTU-CVE-2020-11076",
    "UBUNTU-CVE-2020-11077",
    "UBUNTU-CVE-2022-23634",
    "UBUNTU-CVE-2022-24790",
    "UBUNTU-CVE-2023-40175",
    "UBUNTU-CVE-2024-21647"
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

ubuntu-cve-2020-11076

Vulnerability from osv_ubuntu

CVE-2020-11076 (GCVE-0-2020-11076)

usn-6682-1

Vulnerability from osv_ubuntu

Tags

Sightings

Nomenclature