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CVE-2024-24806 Detail

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.


Metrics

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CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

References to Advisories, Solutions, and Tools

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Hyperlink Resource
http://www.openwall.com/lists/oss-security/2024/02/08/2 Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2024/02/11/1 Mailing List  Third Party Advisory 
http://www.openwall.com/lists/oss-security/2024/03/11/1
https://github.com/libuv/libuv/commit/0f2d7e784a256b54b2385043438848047bc2a629 Patch 
https://github.com/libuv/libuv/commit/3530bcc30350d4a6ccf35d2f7b33e23292b9de70 Patch 
https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488 Patch 
https://github.com/libuv/libuv/commit/e0327e1d508b8207c9150b6e582f0adf26213c39 Patch 
https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6 Exploit  Vendor Advisory 
https://lists.debian.org/debian-lts-announce/2024/03/msg00005.html
https://security.netapp.com/advisory/ntap-20240605-0008/

Weakness Enumeration

CWE-ID CWE Name Source
CWE-918 Server-Side Request Forgery (SSRF) GitHub, Inc.  

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Change History

11 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2024-24806
NVD Published Date:
02/07/2024
NVD Last Modified:
06/10/2024
Source:
GitHub, Inc.