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CVE-2024-24806
Detail
Modified
This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
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.
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NVD Analysts use publicly available information to associate vector strings and CVSS scores. We also display any CVSS information provided within the CVE List from the CNA.
Note: NVD Analysts have not published a CVSS score for this CVE at this time. NVD Analysts use publicly available information at the time of analysis to associate CVSS vector strings.
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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 vulner
Added
Reference
GitHub, Inc. https://github.com/libuv/libuv/commit/0f2d7e784a256b54b2385043438848047bc2a629 [No types assigned]
Added
Reference
GitHub, Inc. https://github.com/libuv/libuv/commit/3530bcc30350d4a6ccf35d2f7b33e23292b9de70 [No types assigned]
Added
Reference
GitHub, Inc. https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488 [No types assigned]
Added
Reference
GitHub, Inc. https://github.com/libuv/libuv/commit/e0327e1d508b8207c9150b6e582f0adf26213c39 [No types assigned]
Added
Reference
GitHub, Inc. https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6 [No types assigned]
Quick Info
CVE Dictionary Entry: CVE-2024-24806 NVD
Published Date: 02/07/2024 NVD
Last Modified: 03/05/2024
Source: GitHub, Inc.
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