Vulnerability-Lookup

UBUNTU-CVE-2024-45397 (CVE-2024-45397)

Vulnerability from osv_ubuntu – Published: 2024-10-11 15:15 – Updated: 2026-04-22 07:50 – Source website

Details

h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When an HTTP request using TLS/1.3 early data on top of TCP Fast Open or QUIC 0-RTT packets is received and the IP-address-based access control is used, the access control does not detect and prohibit HTTP requests conveyed by packets with a spoofed source address. This behavior allows attackers on the network to execute HTTP requests from addresses that are otherwise rejected by the address-based access control. The vulnerability has been addressed in commit 15ed15a. Users may disable the use of TCP FastOpen and QUIC to mitigate the issue.

Severity

5.9 (Medium)


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

7.5 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2024-45397	REPORT
	https://www.cve.org/CVERecord?id=CVE-2024-45397	REPORT
	https://github.com/h2o/h2o/security/advisories/GH…	REPORT
	https://github.com/h2o/h2o/commit/15ed15a2efb83a7…	REPORT
	https://h2o.examp1e.net/configure/http3_directives.html	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "h2o",
            "binary_version": "2.2.4+dfsg-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "libh2o-dev-common",
            "binary_version": "2.2.4+dfsg-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "libh2o-evloop0.13",
            "binary_version": "2.2.4+dfsg-1ubuntu0.1~esm2"
          },
          {
            "binary_name": "libh2o0.13",
            "binary_version": "2.2.4+dfsg-1ubuntu0.1~esm2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:18.04:LTS",
        "name": "h2o",
        "purl": "pkg:deb/ubuntu/h2o@2.2.4+dfsg-1ubuntu0.1~esm2?arch=source\u0026distro=esm-apps/bionic"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.3+dfsg-2",
        "2.2.4+dfsg-1",
        "2.2.4+dfsg-1build1",
        "2.2.4+dfsg-1ubuntu0.1~esm2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "h2o",
            "binary_version": "2.2.5+dfsg2-3ubuntu0.1~esm1"
          },
          {
            "binary_name": "libh2o-dev-common",
            "binary_version": "2.2.5+dfsg2-3ubuntu0.1~esm1"
          },
          {
            "binary_name": "libh2o-evloop0.13",
            "binary_version": "2.2.5+dfsg2-3ubuntu0.1~esm1"
          },
          {
            "binary_name": "libh2o0.13",
            "binary_version": "2.2.5+dfsg2-3ubuntu0.1~esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:20.04:LTS",
        "name": "h2o",
        "purl": "pkg:deb/ubuntu/h2o@2.2.5+dfsg2-3ubuntu0.1~esm1?arch=source\u0026distro=esm-apps/focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.5+dfsg2-3",
        "2.2.5+dfsg2-3build1",
        "2.2.5+dfsg2-3ubuntu0.1~esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "h2o",
            "binary_version": "2.2.5+dfsg2-6.1ubuntu2+esm1"
          },
          {
            "binary_name": "libh2o-dev-common",
            "binary_version": "2.2.5+dfsg2-6.1ubuntu2+esm1"
          },
          {
            "binary_name": "libh2o-evloop0.13",
            "binary_version": "2.2.5+dfsg2-6.1ubuntu2+esm1"
          },
          {
            "binary_name": "libh2o0.13",
            "binary_version": "2.2.5+dfsg2-6.1ubuntu2+esm1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:Pro:22.04:LTS",
        "name": "h2o",
        "purl": "pkg:deb/ubuntu/h2o@2.2.5+dfsg2-6.1ubuntu2+esm1?arch=source\u0026distro=esm-apps/jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.5+dfsg2-6",
        "2.2.5+dfsg2-6.1",
        "2.2.5+dfsg2-6.1ubuntu1",
        "2.2.5+dfsg2-6.1ubuntu2",
        "2.2.5+dfsg2-6.1ubuntu2+esm1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "h2o",
            "binary_version": "2.2.5+dfsg2-8.1ubuntu3"
          },
          {
            "binary_name": "libh2o-dev-common",
            "binary_version": "2.2.5+dfsg2-8.1ubuntu3"
          },
          {
            "binary_name": "libh2o-evloop0.13t64",
            "binary_version": "2.2.5+dfsg2-8.1ubuntu3"
          },
          {
            "binary_name": "libh2o0.13t64",
            "binary_version": "2.2.5+dfsg2-8.1ubuntu3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "h2o",
        "purl": "pkg:deb/ubuntu/h2o@2.2.5+dfsg2-8.1ubuntu3?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "2.2.5+dfsg2-7",
        "2.2.5+dfsg2-8",
        "2.2.5+dfsg2-8.1ubuntu1",
        "2.2.5+dfsg2-8.1ubuntu2",
        "2.2.5+dfsg2-8.1ubuntu3"
      ]
    }
  ],
  "aliases": [],
  "details": "h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When an HTTP request using TLS/1.3 early data on top of TCP Fast Open or QUIC 0-RTT packets is received and the IP-address-based access control is used, the access control does not detect and prohibit HTTP requests conveyed by packets with a spoofed source address. This behavior allows attackers on the network to execute HTTP requests from addresses that are otherwise rejected by the address-based access control. The vulnerability has been addressed in commit 15ed15a. Users may disable the use of TCP FastOpen and QUIC to mitigate the issue.",
  "id": "UBUNTU-CVE-2024-45397",
  "modified": "2026-04-22T07:50:53Z",
  "published": "2024-10-11T15:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-45397"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-45397"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/h2o/h2o/security/advisories/GHSA-jf2c-xjcp-wg4c"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/h2o/h2o/commit/15ed15a2efb83a77bb4baaa5a119e639c2f6898a"
    },
    {
      "type": "REPORT",
      "url": "https://h2o.examp1e.net/configure/http3_directives.html"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2024-45397"
  ]
}

CVE-2024-45397 (GCVE-0-2024-45397)

Vulnerability from cvelistv5 – Published: 2024-10-11 14:24 – Updated: 2024-10-11 14:42

Title

H2O alllows bypassing address-based access control with 0-RTT

Summary

Severity

5.9 (Medium)


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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2024-10-11 14:42 UTC

CWE

CWE-284 - Improper Access Control

Assigner

GitHub_M mitre root

References

3 references

URL	Tags
https://github.com/h2o/h2o/security/advisories/GH…	x_refsource_CONFIRM
https://github.com/h2o/h2o/commit/15ed15a2efb83a7…	x_refsource_MISC
https://h2o.examp1e.net/configure/http3_directives.html	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
h2o	h2o	Affected: < 15ed15a2efb83a77bb4baaa5a119e639c2f6898a

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2024-45397",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-10-11T14:42:12.389414Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2024-10-11T14:42:24.963Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "h2o",
          "vendor": "h2o",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 15ed15a2efb83a77bb4baaa5a119e639c2f6898a"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "h2o is an HTTP server with support for HTTP/1.x, HTTP/2 and HTTP/3. When an HTTP request using TLS/1.3 early data on top of TCP Fast Open or QUIC 0-RTT packets is received and the IP-address-based access control is used, the access control does not detect and prohibit HTTP requests conveyed by packets with a spoofed source address. This behavior allows attackers on the network to execute HTTP requests from addresses that are otherwise rejected by the address-based access control. The vulnerability has been addressed in commit 15ed15a. Users may disable the use of TCP FastOpen and QUIC to mitigate the issue."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 5.9,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-284",
              "description": "CWE-284: Improper Access Control",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2024-10-11T14:24:57.687Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/h2o/h2o/security/advisories/GHSA-jf2c-xjcp-wg4c",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/h2o/h2o/security/advisories/GHSA-jf2c-xjcp-wg4c"
        },
        {
          "name": "https://github.com/h2o/h2o/commit/15ed15a2efb83a77bb4baaa5a119e639c2f6898a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/h2o/h2o/commit/15ed15a2efb83a77bb4baaa5a119e639c2f6898a"
        },
        {
          "name": "https://h2o.examp1e.net/configure/http3_directives.html",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://h2o.examp1e.net/configure/http3_directives.html"
        }
      ],
      "source": {
        "advisory": "GHSA-jf2c-xjcp-wg4c",
        "discovery": "UNKNOWN"
      },
      "title": "H2O alllows bypassing address-based access control with 0-RTT"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-45397",
    "datePublished": "2024-10-11T14:24:57.687Z",
    "dateReserved": "2024-08-28T20:21:32.802Z",
    "dateUpdated": "2024-10-11T14:42:24.963Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.