Vulnerability-Lookup

CVE-2023-41378 (GCVE-0-2023-41378)

Vulnerability from cvelistv5 – Published: 2023-11-06 15:00 – Updated: 2024-09-05 13:40

Title

Calico Typha hangs during unclean TLS handshake

Summary

In certain conditions for Calico Typha (v3.26.2, v3.25.1 and below), and Calico Enterprise Typha (v3.17.1, v3.16.3, v3.15.3 and below), a client TLS handshake can block the Calico Typha server indefinitely, resulting in denial of service. The TLS Handshake() call is performed inside the main server handle for loop without any timeout allowing an unclean TLS handshake to block the main loop indefinitely while other connections will be idle waiting for that handshake to finish.

Severity

7.5 (High)


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

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-09-05 13:31 UTC

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-703 - Improper Check or Handling of Exceptional Conditions

Assigner

Tigera mitre root

References

3 references

URL	Tags
https://www.tigera.io/security-bulletins-tta-2023-001/	vendor-advisoryrelease-notes
https://github.com/projectcalico/calico/pull/7908	issue-tracking
https://github.com/projectcalico/calico/pull/7993	patch

Impacted products

4 products

Vendor	Product	Version
Calico	Typha	Affected: v3.26.0 , ≤ v3.26.2 (semver) Affected: 0 , ≤ v3.25.1 (semver)
Tigera	Typha	Affected: v3.17.0 , ≤ v3.17.1 (semver) Affected: v3.16.0 , ≤ v3.16.3 (semver) Affected: 0 , ≤ v3.15.3 (semver)
calico	typha	Affected: v3.26.0 , ≤ v3.26.2 (semver) Affected: 0 , ≤ v3.25.1 (semver) cpe:2.3:a:calico:typha::::::::
tigera	calico	Affected: v3.17.0 , ≤ v3.17.1 (semver) Affected: v3.16.0 , ≤ v3.16.3 (semver) Affected: 0 , ≤ v3.15.3 (semver) cpe:2.3:a:tigera:calico::::::::

Date Public

2023-11-06 15:00

Credits

Rodrigo Fior Kuntzer (Github: rodrigorfk) Anthony Tam Behnam Shobiri Shaun Crampton Matt Dupre

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2023-41378

Vulnerability from fkie_nvd - Published: 2023-11-06 16:15 - Updated: 2026-06-17 06:22

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

URL	Tags
psirt@tigera.io	https://github.com/projectcalico/calico/pull/7908	Issue Tracking
psirt@tigera.io	https://github.com/projectcalico/calico/pull/7993	Issue Tracking, Patch
psirt@tigera.io	https://www.tigera.io/security-bulletins-tta-2023-001/	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://github.com/projectcalico/calico/pull/7908	Issue Tracking
af854a3a-2127-422b-91ae-364da2661108	https://github.com/projectcalico/calico/pull/7993	Issue Tracking, Patch
af854a3a-2127-422b-91ae-364da2661108	https://www.tigera.io/security-bulletins-tta-2023-001/	Vendor Advisory

Impacted products

Vendor	Product	Version
tigera	calico_cloud	*
tigera	calico_enterprise	*
tigera	calico_enterprise	*
tigera	calico_enterprise	*
tigera	calico_os	*
tigera	calico_os	*

JSON

To clipboard

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              "status": "affected",
              "version": "v3.26.0",
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              "version": "0",
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              "status": "affected",
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            {
              "lessThanOrEqual": "v3.16.3",
              "status": "affected",
              "version": "v3.16.0",
              "versionType": "semver"
            },
            {
              "lessThanOrEqual": "v3.15.3",
              "status": "affected",
              "version": "0",
              "versionType": "semver"
            }
          ]
        }
      ],
      "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:tigera:calico_cloud:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "A6E534E0-9FCF-4160-90F6-6DFBAB1165F1",
              "versionEndExcluding": "18.0.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:tigera:calico_enterprise:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "7B645D3E-FB99-4AB0-B0BF-403F946EA426",
              "versionEndExcluding": "3.15.4",
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              "matchCriteriaId": "9B24AB38-41C0-43F7-9D51-01DFCA7F0A94",
              "versionEndExcluding": "3.26.3",
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            }
          ],
          "negate": false,
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      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In certain conditions for Calico Typha (v3.26.2, v3.25.1 and below), and Calico Enterprise Typha (v3.17.1, v3.16.3, v3.15.3 and below), a client TLS handshake can block the Calico Typha server indefinitely, resulting in denial of service. The TLS Handshake() call is performed inside the main server handle for loop without any timeout allowing an unclean TLS handshake to block the main loop indefinitely while other connections will be idle waiting for that handshake to finish.\n"
    },
    {
      "lang": "es",
      "value": "En determinadas condiciones para Calico Typha (v3.26.2, v3.25.1 y anteriores) y Calico Enterprise Typha (v3.17.1, v3.16.3, v3.15.3 y siguientes), un protocolo de enlace TLS del cliente puede bloquear el servidor Calico Typha indefinidamente, resultando en denegaci\u00f3n de servicio. La llamada TLS Handshake() se realiza dentro del bucle for del identificador del servidor principal sin ning\u00fan tiempo de espera, lo que permite que un protocolo de enlace TLS sucio bloquee el bucle principal indefinidamente mientras que otras conexiones estar\u00e1n inactivas esperando a que finalice ese protocolo de enlace."
    }
  ],
  "id": "CVE-2023-41378",
  "lastModified": "2026-06-17T06:22:03.980",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "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:H",
          "version": "3.1"
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        "impactScore": 3.6,
        "source": "psirt@tigera.io",
        "type": "Secondary"
      },
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          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "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:H",
          "version": "3.1"
        },
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        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
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    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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          "id": "CVE-2023-41378",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "timestamp": "2024-09-05T13:31:52.190285Z",
          "version": "2.0.3"
        }
      }
    ]
  },
  "published": "2023-11-06T16:15:42.273",
  "references": [
    {
      "source": "psirt@tigera.io",
      "tags": [
        "Issue Tracking"
      ],
      "url": "https://github.com/projectcalico/calico/pull/7908"
    },
    {
      "source": "psirt@tigera.io",
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    {
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      "url": "https://www.tigera.io/security-bulletins-tta-2023-001/"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
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    },
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      "url": "https://www.tigera.io/security-bulletins-tta-2023-001/"
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  ],
  "sourceIdentifier": "psirt@tigera.io",
  "vulnStatus": "Modified",
  "weaknesses": [
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      "description": [
        {
          "lang": "en",
          "value": "CWE-400"
        },
        {
          "lang": "en",
          "value": "CWE-703"
        }
      ],
      "source": "psirt@tigera.io",
      "type": "Secondary"
    },
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-755"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}

GHSA-5R5H-Q934-CCCP

Vulnerability from github – Published: 2023-11-06 18:30 – Updated: 2023-11-08 14:52

Summary

Calico Typha denial of service vulnerability

Details

Severity

7.5 (High)


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

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/projectcalico/calico"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.26.0"
            },
            {
              "fixed": "3.26.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Go",
        "name": "github.com/projectcalico/calico"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "last_affected": "3.25.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2023-41378"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-400",
      "CWE-755"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-11-08T14:52:23Z",
    "nvd_published_at": "2023-11-06T16:15:42Z",
    "severity": "HIGH"
  },
  "details": "In certain conditions for Calico Typha (v3.26.2, v3.25.1 and below), and Calico Enterprise Typha (v3.17.1, v3.16.3, v3.15.3 and below), a client TLS handshake can block the Calico Typha server indefinitely, resulting in denial of service. The TLS Handshake() call is performed inside the main server handle for loop without any timeout allowing an unclean TLS handshake to block the main loop indefinitely while other connections will be idle waiting for that handshake to finish.\n",
  "id": "GHSA-5r5h-q934-cccp",
  "modified": "2023-11-08T14:52:23Z",
  "published": "2023-11-06T18:30:19Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-41378"
    },
    {
      "type": "WEB",
      "url": "https://github.com/projectcalico/calico/pull/7908"
    },
    {
      "type": "WEB",
      "url": "https://github.com/projectcalico/calico/pull/7993"
    },
    {
      "type": "WEB",
      "url": "https://github.com/projectcalico/calico/commit/2ebc1f92ecc39332cf1d55ba676d9101af24982f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/projectcalico/calico/commit/ad8bd001e650ec7742ac30e58247e7eef5956125"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/projectcalico/calico"
    },
    {
      "type": "WEB",
      "url": "https://www.tigera.io/security-bulletins-tta-2023-001"
    }
  ],
  "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:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Calico Typha denial of service vulnerability"
}

GSD-2023-41378

Vulnerability from gsd - Updated: 2023-12-13 01:20

Details

Aliases

CVE-2023-41378

Aliases

CVE-2023-41378

JSON

To clipboard

{
  "GSD": {
    "alias": "CVE-2023-41378",
    "id": "GSD-2023-41378"
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
    "osvSchema": {
      "aliases": [
        "CVE-2023-41378"
      ],
      "details": "In certain conditions for Calico Typha (v3.26.2, v3.25.1 and below), and Calico Enterprise Typha (v3.17.1, v3.16.3, v3.15.3 and below), a client TLS handshake can block the Calico Typha server indefinitely, resulting in denial of service. The TLS Handshake() call is performed inside the main server handle for loop without any timeout allowing an unclean TLS handshake to block the main loop indefinitely while other connections will be idle waiting for that handshake to finish.\n",
      "id": "GSD-2023-41378",
      "modified": "2023-12-13T01:20:45.443144Z",
      "schema_version": "1.4.0"
    }
  },
  "namespaces": {
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        "ID": "CVE-2023-41378",
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                    "product_name": "Typha",
                    "version": {
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                          "version_affected": "\u003c=",
                          "version_name": "v3.26.0",
                          "version_value": "v3.26.2"
                        },
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                          "version_affected": "\u003c=",
                          "version_name": "0",
                          "version_value": "v3.25.1"
                        }
                      ]
                    }
                  }
                ]
              },
              "vendor_name": "Calico"
            },
            {
              "product": {
                "product_data": [
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                          "version_name": "v3.17.0",
                          "version_value": "v3.17.1"
                        },
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                          "version_affected": "\u003c=",
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                        },
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              "vendor_name": "Tigera"
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          "value": "Behnam Shobiri"
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            "baseScore": 7.5,
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            "confidentialityImpact": "NONE",
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            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
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          },
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                "value": "CWE-703 Improper Check or Handling of Exceptional Conditions"
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      },
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          },
          {
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          },
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              ],
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            },
            {
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              "refsource": "MISC",
              "tags": [
                "Issue Tracking"
              ],
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            },
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      },
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        }
      },
      "lastModifiedDate": "2023-11-14T17:48Z",
      "publishedDate": "2023-11-06T16:15Z"
    }
  }
}

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2023-41378 (GCVE-0-2023-41378)

FKIE_CVE-2023-41378

GHSA-5R5H-Q934-CCCP

GSD-2023-41378

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Related by attack behaviour