CVE - CVE-2024-24806

CVE-ID
CVE-2024-24806	Learn more at National Vulnerability Database (NVD) • CVSS Severity Rating • Fix Information • Vulnerable Software Versions • SCAP Mappings • CPE Information
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.
References
Note: References are provided for the convenience of the reader to help distinguish between vulnerabilities. The list is not intended to be complete.
MISC:https://github.com/libuv/libuv/commit/0f2d7e784a256b54b2385043438848047bc2a629 URL:https://github.com/libuv/libuv/commit/0f2d7e784a256b54b2385043438848047bc2a629 MISC:https://github.com/libuv/libuv/commit/3530bcc30350d4a6ccf35d2f7b33e23292b9de70 URL:https://github.com/libuv/libuv/commit/3530bcc30350d4a6ccf35d2f7b33e23292b9de70 MISC:https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488 URL:https://github.com/libuv/libuv/commit/c858a147643de38a09dd4164758ae5b685f2b488 MISC:https://github.com/libuv/libuv/commit/e0327e1d508b8207c9150b6e582f0adf26213c39 URL:https://github.com/libuv/libuv/commit/e0327e1d508b8207c9150b6e582f0adf26213c39 MISC:https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6 URL:https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6 MLIST:[debian-lts-announce] 20240305 [SECURITY] [DLA 3752-1] libuv1 security update URL:https://lists.debian.org/debian-lts-announce/2024/03/msg00005.html MLIST:[oss-security] 20240208 libuv 1.48.0 released, fixes CVE-2024-24806 URL:http://www.openwall.com/lists/oss-security/2024/02/08/2 MLIST:[oss-security] 20240211 Re: libuv 1.48.0 released, fixes CVE-2024-24806 URL:http://www.openwall.com/lists/oss-security/2024/02/11/1
Assigning CNA
GitHub (maintainer security advisories)
Date Record Created
20240131	Disclaimer: The record creation date may reflect when the CVE ID was allocated or reserved, and does not necessarily indicate when this vulnerability was discovered, shared with the affected vendor, publicly disclosed, or updated in CVE.
Phase (Legacy)
Assigned (20240131)
Votes (Legacy)

Comments (Legacy)

Proposed (Legacy)
N/A
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