Vulnerability-Lookup

ubuntu-cve-2024-24806

Vulnerability from osv_ubuntu

Published

2024-02-07 22:15

Modified

2026-04-22 07:48

Summary

Details

libuv is a multi-platform support library with a focus on asynchronous I/O. The uv_getaddrinfo function in src/unix/getaddrinfo.c (and its windows counterpart src/win/getaddrinfo.c), truncates hostnames to 256 characters before calling getaddrinfo. This behavior can be exploited to create addresses like 0x00007f000001, which are considered valid by getaddrinfo and could allow an attacker to craft payloads that resolve to unintended IP addresses, bypassing developer checks. The vulnerability arises due to how the hostname_ascii variable (with a length of 256 bytes) is handled in uv_getaddrinfo and subsequently in uv__idna_toascii. When the hostname exceeds 256 characters, it gets truncated without a terminating null byte. As a result attackers may be able to access internal APIs or for websites (similar to MySpace) that allows users to have username.example.com pages. Internal services that crawl or cache these user pages can be exposed to SSRF attacks if a malicious user chooses a long vulnerable username. This issue has been addressed in release version 1.48.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Severity

7.3 (High)


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

7.3 (High)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2024-24806	REPORT
	https://github.com/libuv/libuv/security/advisorie…	REPORT
	http://www.openwall.com/lists/oss-security/2024/02/08/2	REPORT
	https://ubuntu.com/security/notices/USN-6666-1	ADVISORY
	https://www.cve.org/CVERecord?id=CVE-2024-24806	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libuv1",
            "binary_version": "1.34.2-1ubuntu1.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libuv1",
        "purl": "pkg:deb/ubuntu/libuv1@1.34.2-1ubuntu1.5?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.34.2-1ubuntu1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.30.1-1",
        "1.33.1-2",
        "1.33.1-2ubuntu2",
        "1.33.1-3ubuntu1",
        "1.34.2-1ubuntu1",
        "1.34.2-1ubuntu1.1",
        "1.34.2-1ubuntu1.3"
      ]
    },
    {
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libuv1",
            "binary_version": "1.43.0-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libuv1",
        "purl": "pkg:deb/ubuntu/libuv1@1.43.0-1ubuntu0.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
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          "events": [
            {
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            },
            {
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            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.40.0-2ubuntu1",
        "1.42.0-1",
        "1.43.0-1"
      ]
    }
  ],
  "aliases": [],
  "details": "libuv is a multi-platform support library with a focus on asynchronous I/O. The `uv_getaddrinfo` function in `src/unix/getaddrinfo.c` (and its windows counterpart `src/win/getaddrinfo.c`), truncates hostnames to 256 characters before calling `getaddrinfo`. This behavior can be exploited to create addresses like `0x00007f000001`, which are considered valid by `getaddrinfo` and could allow an attacker to craft payloads that resolve to unintended IP addresses, bypassing developer checks. The vulnerability arises due to how the `hostname_ascii` variable (with a length of 256 bytes) is handled in `uv_getaddrinfo` and subsequently in `uv__idna_toascii`. When the hostname exceeds 256 characters, it gets truncated without a terminating null byte. As a result attackers may be able to access internal APIs or for websites (similar to MySpace) that allows users to have `username.example.com` pages. Internal services that crawl or cache these user pages can be exposed to SSRF attacks if a malicious user chooses a long vulnerable username. This issue has been addressed in release version 1.48.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.",
  "id": "UBUNTU-CVE-2024-24806",
  "modified": "2026-04-22T07:48:00Z",
  "published": "2024-02-07T22:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-24806"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6"
    },
    {
      "type": "REPORT",
      "url": "http://www.openwall.com/lists/oss-security/2024/02/08/2"
    },
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6666-1"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2024-24806"
    }
  ],
  "related": [
    "USN-6666-1"
  ],
  "schema_version": "1.7.0",
  "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:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2024-24806"
  ]
}

CVE-2024-24806 (GCVE-0-2024-24806)

Vulnerability from cvelistv5 – Published: 2024-02-07 21:44 – Updated: 2025-06-17 14:17

Title

Improper Domain Lookup that potentially leads to SSRF attacks in libuv

Summary

libuv is a multi-platform support library with a focus on asynchronous I/O. The `uv_getaddrinfo` function in `src/unix/getaddrinfo.c` (and its windows counterpart `src/win/getaddrinfo.c`), truncates hostnames to 256 characters before calling `getaddrinfo`. This behavior can be exploited to create addresses like `0x00007f000001`, which are considered valid by `getaddrinfo` and could allow an attacker to craft payloads that resolve to unintended IP addresses, bypassing developer checks. The vulnerability arises due to how the `hostname_ascii` variable (with a length of 256 bytes) is handled in `uv_getaddrinfo` and subsequently in `uv__idna_toascii`. When the hostname exceeds 256 characters, it gets truncated without a terminating null byte. As a result attackers may be able to access internal APIs or for websites (similar to MySpace) that allows users to have `username.example.com` pages. Internal services that crawl or cache these user pages can be exposed to SSRF attacks if a malicious user chooses a long vulnerable username. This issue has been addressed in release version 1.48.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Severity

7.3 (High)


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

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-918 - Server-Side Request Forgery (SSRF)

Assigner

GitHub_M

References

11 references

URL	Tags
https://github.com/libuv/libuv/security/advisorie…	x_refsource_CONFIRM
https://github.com/libuv/libuv/commit/0f2d7e784a2…	x_refsource_MISC
https://github.com/libuv/libuv/commit/3530bcc3035…	x_refsource_MISC
https://github.com/libuv/libuv/commit/c858a147643…	x_refsource_MISC
https://github.com/libuv/libuv/commit/e0327e1d508…	x_refsource_MISC
http://www.openwall.com/lists/oss-security/2024/02/08/2
http://www.openwall.com/lists/oss-security/2024/02/11/1
https://lists.debian.org/debian-lts-announce/2024…
http://www.openwall.com/lists/oss-security/2024/03/11/1
https://security.netapp.com/advisory/ntap-2024060…
https://gitlab.kitware.com/cmake/cmake/-/issues/26112

Impacted products

1 product

Vendor	Product	Version
libuv	libuv	Affected: >= 1.45.0, < 1.48.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-09-02T17:08:43.903Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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            "url": "https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488"
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            "url": "http://www.openwall.com/lists/oss-security/2024/02/11/1"
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            "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00005.html"
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            "url": "http://www.openwall.com/lists/oss-security/2024/03/11/1"
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            "tags": [
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            "url": "https://security.netapp.com/advisory/ntap-20240605-0008/"
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            ],
            "url": "https://gitlab.kitware.com/cmake/cmake/-/issues/26112"
          }
        ],
        "title": "CVE Program Container",
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          "engine": "ADPogram 0.0.1"
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      },
      {
        "metrics": [
          {
            "other": {
              "content": {
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                "options": [
                  {
                    "Exploitation": "poc"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2024-02-21T20:41:52.764681Z",
                "version": "2.0.3"
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        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "libuv",
          "vendor": "libuv",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 1.45.0, \u003c 1.48.0"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "libuv is a multi-platform support library with a focus on asynchronous I/O. The `uv_getaddrinfo` function in `src/unix/getaddrinfo.c` (and its windows counterpart `src/win/getaddrinfo.c`), truncates hostnames to 256 characters before calling `getaddrinfo`. This behavior can be exploited to create addresses like `0x00007f000001`, which are considered valid by `getaddrinfo` and could allow an attacker to craft payloads that resolve to unintended IP addresses, bypassing developer checks. The vulnerability arises due to how the `hostname_ascii` variable (with a length of 256 bytes) is handled in `uv_getaddrinfo` and subsequently in `uv__idna_toascii`. When the hostname exceeds 256 characters, it gets truncated without a terminating null byte. As a result attackers may be able to access internal APIs or for websites (similar to MySpace) that allows users to have `username.example.com` pages. Internal services that crawl or cache these user pages can be exposed to SSRF attacks if a malicious user chooses a long vulnerable username. This issue has been addressed in release version 1.48.0. Users are advised to upgrade. There are no known workarounds for this vulnerability."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "LOW",
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          }
        }
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          ]
        }
      ],
      "providerMetadata": {
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        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      },
      "references": [
        {
          "name": "https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6",
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          ],
          "url": "https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6"
        },
        {
          "name": "https://github.com/libuv/libuv/commit/0f2d7e784a256b54b2385043438848047bc2a629",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/libuv/libuv/commit/0f2d7e784a256b54b2385043438848047bc2a629"
        },
        {
          "name": "https://github.com/libuv/libuv/commit/3530bcc30350d4a6ccf35d2f7b33e23292b9de70",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/libuv/libuv/commit/3530bcc30350d4a6ccf35d2f7b33e23292b9de70"
        },
        {
          "name": "https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488"
        },
        {
          "name": "https://github.com/libuv/libuv/commit/e0327e1d508b8207c9150b6e582f0adf26213c39",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/libuv/libuv/commit/e0327e1d508b8207c9150b6e582f0adf26213c39"
        },
        {
          "url": "http://www.openwall.com/lists/oss-security/2024/02/08/2"
        },
        {
          "url": "http://www.openwall.com/lists/oss-security/2024/02/11/1"
        },
        {
          "url": "https://lists.debian.org/debian-lts-announce/2024/03/msg00005.html"
        },
        {
          "url": "http://www.openwall.com/lists/oss-security/2024/03/11/1"
        },
        {
          "url": "https://security.netapp.com/advisory/ntap-20240605-0008/"
        },
        {
          "url": "https://gitlab.kitware.com/cmake/cmake/-/issues/26112"
        }
      ],
      "source": {
        "advisory": "GHSA-f74f-cvh7-c6q6",
        "discovery": "UNKNOWN"
      },
      "title": "Improper Domain Lookup that potentially leads to SSRF attacks in libuv"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2024-24806",
    "datePublished": "2024-02-07T21:44:33.566Z",
    "dateReserved": "2024-01-31T16:28:17.940Z",
    "dateUpdated": "2025-06-17T14:17:09.153Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

usn-6666-1

Vulnerability from osv_ubuntu

Published

2024-02-28 13:20

Modified

2026-04-22 07:37

Summary

libuv1 vulnerability

Details

It was discovered that libuv incorrectly truncated certain hostnames. A remote attacker could possibly use this issue with specially crafted hostnames to bypass certain checks.

References

URL

Type

	https://ubuntu.com/security/notices/USN-6666-1	ADVISORY
	https://ubuntu.com/security/CVE-2024-24806	REPORT

JSON

To clipboard

{
  "affected": [
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-24806",
              "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:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:20.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libuv1",
            "binary_version": "1.34.2-1ubuntu1.5"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "libuv1",
        "purl": "pkg:deb/ubuntu/libuv1@1.34.2-1ubuntu1.5?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.34.2-1ubuntu1.5"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.30.1-1",
        "1.33.1-2",
        "1.33.1-2ubuntu2",
        "1.33.1-3ubuntu1",
        "1.34.2-1ubuntu1",
        "1.34.2-1ubuntu1.1",
        "1.34.2-1ubuntu1.3"
      ]
    },
    {
      "database_specific": {
        "cves_map": {
          "cves": [
            {
              "id": "CVE-2024-24806",
              "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:L/I:L/A:L",
                  "type": "CVSS_V3"
                },
                {
                  "score": "medium",
                  "type": "Ubuntu"
                }
              ]
            }
          ],
          "ecosystem": "Ubuntu:22.04:LTS"
        }
      },
      "ecosystem_specific": {
        "availability": "No subscription required",
        "binaries": [
          {
            "binary_name": "libuv1",
            "binary_version": "1.43.0-1ubuntu0.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "libuv1",
        "purl": "pkg:deb/ubuntu/libuv1@1.43.0-1ubuntu0.1?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "1.43.0-1ubuntu0.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.40.0-2ubuntu1",
        "1.42.0-1",
        "1.43.0-1"
      ]
    }
  ],
  "aliases": [],
  "details": "It was discovered that libuv incorrectly truncated certain hostnames. A\nremote attacker could possibly use this issue with specially crafted\nhostnames to bypass certain checks.\n",
  "id": "USN-6666-1",
  "modified": "2026-04-22T07:37:07Z",
  "published": "2024-02-28T13:20:14Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://ubuntu.com/security/notices/USN-6666-1"
    },
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2024-24806"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "summary": "libuv1 vulnerability",
  "upstream": [
    "UBUNTU-CVE-2024-24806"
  ]
}

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.

Action not permitted

ubuntu-cve-2024-24806

Vulnerability from osv_ubuntu

CVE-2024-24806 (GCVE-0-2024-24806)

usn-6666-1

Vulnerability from osv_ubuntu

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Sightings

Nomenclature