{"id":"CVE-2024-24806","state":"PUBLISHED","title":"Improper Domain Lookup that potentially leads to SSRF attacks in libuv","description":"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.","publishedAt":"2024-02-07T21:44:33.566Z","updatedAt":"2025-06-17T14:17:09.153Z","severity":{"score":7.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["libuv libuv"],"affected":[{"vendor":"libuv","product":"libuv","versions":[{"version":">= 1.45.0, < 1.48.0","status":"affected"}]}],"references":["https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6","https://github.com/libuv/libuv/commit/0f2d7e784a256b54b2385043438848047bc2a629","https://github.com/libuv/libuv/commit/3530bcc30350d4a6ccf35d2f7b33e23292b9de70","https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488","https://github.com/libuv/libuv/commit/e0327e1d508b8207c9150b6e582f0adf26213c39","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/2024/03/msg00005.html","http://www.openwall.com/lists/oss-security/2024/03/11/1","https://security.netapp.com/advisory/ntap-20240605-0008/","https://gitlab.kitware.com/cmake/cmake/-/issues/26112"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:07:10.607Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2024/24xxx/CVE-2024-24806.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2024-24806","state":"PUBLISHED","datePublished":"2024-02-07T21:44:33.566Z","dateUpdated":"2025-06-17T14:17:09.153Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2024-01-31T16:28:17.940Z"},"containers":{"cna":{"title":"Improper Domain Lookup that potentially leads to SSRF attacks in libuv","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."}],"affected":[{"vendor":"libuv","product":"libuv","versions":[{"version":">= 1.45.0, < 1.48.0","status":"affected"}]}],"references":[{"url":"https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6","name":"https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/libuv/libuv/commit/0f2d7e784a256b54b2385043438848047bc2a629","name":"https://github.com/libuv/libuv/commit/0f2d7e784a256b54b2385043438848047bc2a629","tags":["x_refsource_MISC"]},{"url":"https://github.com/libuv/libuv/commit/3530bcc30350d4a6ccf35d2f7b33e23292b9de70","name":"https://github.com/libuv/libuv/commit/3530bcc30350d4a6ccf35d2f7b33e23292b9de70","tags":["x_refsource_MISC"]},{"url":"https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488","name":"https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488","tags":["x_refsource_MISC"]},{"url":"https://github.com/libuv/libuv/commit/e0327e1d508b8207c9150b6e582f0adf26213c39","name":"https://github.com/libuv/libuv/commit/e0327e1d508b8207c9150b6e582f0adf26213c39","tags":["x_refsource_MISC"]},{"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"}],"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"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2024-07-18T00:17:58.651Z"},"source":{"advisory":"GHSA-f74f-cvh7-c6q6","discovery":"UNKNOWN"}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6","name":"https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6","tags":["x_refsource_CONFIRM","x_transferred"]},{"url":"https://github.com/libuv/libuv/commit/0f2d7e784a256b54b2385043438848047bc2a629","name":"https://github.com/libuv/libuv/commit/0f2d7e784a256b54b2385043438848047bc2a629","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://github.com/libuv/libuv/commit/3530bcc30350d4a6ccf35d2f7b33e23292b9de70","name":"https://github.com/libuv/libuv/commit/3530bcc30350d4a6ccf35d2f7b33e23292b9de70","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488","name":"https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488","tags":["x_refsource_MISC","x_transferred"]},{"url":"https://github.com/libuv/libuv/commit/e0327e1d508b8207c9150b6e582f0adf26213c39","name":"https://github.com/libuv/libuv/commit/e0327e1d508b8207c9150b6e582f0adf26213c39","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2024/02/08/2","tags":["x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2024/02/11/1","tags":["x_transferred"]},{"url":"https://lists.debian.org/debian-lts-announce/2024/03/msg00005.html","tags":["x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2024/03/11/1","tags":["x_transferred"]},{"url":"https://security.netapp.com/advisory/ntap-20240605-0008/","tags":["x_transferred"]},{"url":"https://gitlab.kitware.com/cmake/cmake/-/issues/26112","tags":["x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-09-02T17:08:43.903Z"},"x_generator":{"engine":"ADPogram 0.0.1"}},{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2024-02-21T20:41:52.764681Z","id":"CVE-2024-24806","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2025-06-17T14:17:09.153Z"}}]}}}