pysec - pysec-2021-12

pysec-2021-12

Vulnerability from pysec

Published

2021-05-07 15:15

Modified

2021-05-14 17:02

Details

Eventlet is a concurrent networking library for Python. A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reasonable limits. As a workaround, restricting memory usage via OS limits would help against overall machine exhaustion, but there is no workaround to protect Eventlet process.

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "eventlet",
        "purl": "pkg:pypi/eventlet"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.10.0"
            },
            {
              "fixed": "0.31.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "0.10.0",
        "0.11.0",
        "0.12.1",
        "0.13.0",
        "0.14.0",
        "0.15.2",
        "0.16.1",
        "0.17.4",
        "0.18.2",
        "0.18.3",
        "0.18.4",
        "0.19.0",
        "0.20.0",
        "0.20.1",
        "0.21.0",
        "0.22.0",
        "0.22.1",
        "0.23.0",
        "0.24.0",
        "0.24.1",
        "0.25.0",
        "0.25.1",
        "0.25.2",
        "0.26.0",
        "0.26.1",
        "0.27.0",
        "0.28.0",
        "0.28.1",
        "0.29.0",
        "0.29.1",
        "0.30.0",
        "0.30.1",
        "0.30.2",
        "0.30.3"
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21419",
    "GHSA-9p9m-jm8w-94p2"
  ],
  "details": "Eventlet is a concurrent networking library for Python. A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reasonable limits. As a workaround, restricting memory usage via OS limits would help against overall machine exhaustion, but there is no workaround to protect Eventlet process.",
  "id": "PYSEC-2021-12",
  "modified": "2021-05-14T17:02:00Z",
  "published": "2021-05-07T15:15:00Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/eventlet/eventlet/security/advisories/GHSA-9p9m-jm8w-94p2"
    }
  ]
}

cve-2021-21419

Vulnerability from cvelistv5

Published

2021-05-07 14:30

Modified

2024-08-03 18:09

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Summary

Improper Handling of Highly Compressed Data (Data Amplification) and Memory Allocation with Excessive Size Value in eventlet

References

▼	URL	Tags
	https://github.com/eventlet/eventlet/security/advisories/GHSA-9p9m-jm8w-94p2	x_refsource_CONFIRM
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5JZP4LZOSP7CUAM3GIRW6PIAWKH5VGB/	vendor-advisory, x_refsource_FEDORA
	https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2WJFSBPLCNSZNHYQC4QDRDFRTEZRMD2L/	vendor-advisory, x_refsource_FEDORA

Impacted products

▼	Vendor	Product
	eventlet	eventlet

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-03T18:09:16.080Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://github.com/eventlet/eventlet/security/advisories/GHSA-9p9m-jm8w-94p2"
          },
          {
            "name": "FEDORA-2021-9fde3d7ab1",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5JZP4LZOSP7CUAM3GIRW6PIAWKH5VGB/"
          },
          {
            "name": "FEDORA-2021-d5915c247b",
            "tags": [
              "vendor-advisory",
              "x_refsource_FEDORA",
              "x_transferred"
            ],
            "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2WJFSBPLCNSZNHYQC4QDRDFRTEZRMD2L/"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "eventlet",
          "vendor": "eventlet",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 0.10, \u003c 0.31.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Eventlet is a concurrent networking library for Python. A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reasonable limits. As a workaround, restricting memory usage via OS limits would help against overall machine exhaustion, but there is no workaround to protect Eventlet process."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-400",
              "description": "{\"CWE-400\":\"Uncontrolled Resource Consumption\"}",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2021-05-25T02:06:13",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/eventlet/eventlet/security/advisories/GHSA-9p9m-jm8w-94p2"
        },
        {
          "name": "FEDORA-2021-9fde3d7ab1",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5JZP4LZOSP7CUAM3GIRW6PIAWKH5VGB/"
        },
        {
          "name": "FEDORA-2021-d5915c247b",
          "tags": [
            "vendor-advisory",
            "x_refsource_FEDORA"
          ],
          "url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2WJFSBPLCNSZNHYQC4QDRDFRTEZRMD2L/"
        }
      ],
      "source": {
        "advisory": "GHSA-9p9m-jm8w-94p2",
        "discovery": "UNKNOWN"
      },
      "title": "Improper Handling of Highly Compressed Data (Data Amplification) and Memory Allocation with Excessive Size Value in eventlet",
      "x_legacyV4Record": {
        "CVE_data_meta": {
          "ASSIGNER": "security-advisories@github.com",
          "ID": "CVE-2021-21419",
          "STATE": "PUBLIC",
          "TITLE": "Improper Handling of Highly Compressed Data (Data Amplification) and Memory Allocation with Excessive Size Value in eventlet"
        },
        "affects": {
          "vendor": {
            "vendor_data": [
              {
                "product": {
                  "product_data": [
                    {
                      "product_name": "eventlet",
                      "version": {
                        "version_data": [
                          {
                            "version_value": "\u003e= 0.10, \u003c 0.31.0"
                          }
                        ]
                      }
                    }
                  ]
                },
                "vendor_name": "eventlet"
              }
            ]
          }
        },
        "data_format": "MITRE",
        "data_type": "CVE",
        "data_version": "4.0",
        "description": {
          "description_data": [
            {
              "lang": "eng",
              "value": "Eventlet is a concurrent networking library for Python. A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame. A patch in version 0.31.0 restricts websocket frame to reasonable limits. As a workaround, restricting memory usage via OS limits would help against overall machine exhaustion, but there is no workaround to protect Eventlet process."
            }
          ]
        },
        "impact": {
          "cvss": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.1"
          }
        },
        "problemtype": {
          "problemtype_data": [
            {
              "description": [
                {
                  "lang": "eng",
                  "value": "{\"CWE-400\":\"Uncontrolled Resource Consumption\"}"
                }
              ]
            }
          ]
        },
        "references": {
          "reference_data": [
            {
              "name": "https://github.com/eventlet/eventlet/security/advisories/GHSA-9p9m-jm8w-94p2",
              "refsource": "CONFIRM",
              "url": "https://github.com/eventlet/eventlet/security/advisories/GHSA-9p9m-jm8w-94p2"
            },
            {
              "name": "FEDORA-2021-9fde3d7ab1",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R5JZP4LZOSP7CUAM3GIRW6PIAWKH5VGB/"
            },
            {
              "name": "FEDORA-2021-d5915c247b",
              "refsource": "FEDORA",
              "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2WJFSBPLCNSZNHYQC4QDRDFRTEZRMD2L/"
            }
          ]
        },
        "source": {
          "advisory": "GHSA-9p9m-jm8w-94p2",
          "discovery": "UNKNOWN"
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2021-21419",
    "datePublished": "2021-05-07T14:30:12",
    "dateReserved": "2020-12-22T00:00:00",
    "dateUpdated": "2024-08-03T18:09:16.080Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

ghsa-9p9m-jm8w-94p2

Vulnerability from github

Published

2021-05-07 15:50

Modified

2024-09-20 17:20

Severity ?

5.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
6.9 (Medium) - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N

Summary

Improper Handling of Highly Compressed Data (Data Amplification) and Memory Allocation with Excessive Size Value in eventlet

Details

Impact

A websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame.

Patches

Version 0.31.0 restricts websocket frame to reasonable limits.

Workarounds

Restricting memory usage via OS limits would help against overall machine exhaustion. No workaround to protect Eventlet process.

For more information

If you have any questions or comments about this advisory: * Open an issue in eventlet * Contact current maintainers. At 2021-03: temotor@gmail.com or https://t.me/temotor

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "affected_functions": [
          "eventlet.websocket.WebSocket",
          "eventlet.websocket.WebSocketWSGI"
        ]
      },
      "package": {
        "ecosystem": "PyPI",
        "name": "eventlet"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.10"
            },
            {
              "fixed": "0.31.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2021-21419"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2021-05-07T14:31:05Z",
    "nvd_published_at": "2021-05-07T15:15:00Z",
    "severity": "MODERATE"
  },
  "details": "### Impact\nA websocket peer may exhaust memory on Eventlet side by sending very large websocket frames. Malicious peer may exhaust memory on Eventlet side by sending highly compressed data frame.\n\n### Patches\nVersion 0.31.0 restricts websocket frame to reasonable limits.\n\n### Workarounds\nRestricting memory usage via OS limits would help against overall machine exhaustion. No workaround to protect Eventlet process.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [eventlet](https://github.com/eventlet/eventlet/issues)\n* Contact current maintainers. At 2021-03: temotor@gmail.com or https://t.me/temotor",
  "id": "GHSA-9p9m-jm8w-94p2",
  "modified": "2024-09-20T17:20:53Z",
  "published": "2021-05-07T15:50:36Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/eventlet/eventlet/security/advisories/GHSA-9p9m-jm8w-94p2"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-21419"
    },
    {
      "type": "WEB",
      "url": "https://github.com/eventlet/eventlet/commit/1412f5e4125b4313f815778a1acb4d3336efcd07"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/eventlet/eventlet"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/eventlet/PYSEC-2021-12.yaml"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/2WJFSBPLCNSZNHYQC4QDRDFRTEZRMD2L"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R5JZP4LZOSP7CUAM3GIRW6PIAWKH5VGB"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Improper Handling of Highly Compressed Data (Data Amplification) and Memory Allocation with Excessive Size Value in eventlet"
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

pysec-2021-12

Vulnerability from pysec

cve-2021-21419

Vulnerability from cvelistv5

ghsa-9p9m-jm8w-94p2

Vulnerability from github

Impact

Patches

Workarounds

For more information

Tags

Sightings

Nomenclature