Test ID:	1.3.6.1.4.1.25623.1.1.2.2024.1986
Category:	Huawei EulerOS Local Security Checks
Title:	Huawei EulerOS: Security Advisory for libuv (EulerOS-SA-2024-1986)
Summary:	The remote host is missing an update for the Huawei EulerOS 'libuv' package(s) announced via the EulerOS-SA-2024-1986 advisory.
Description:	Summary: The remote host is missing an update for the Huawei EulerOS 'libuv' package(s) announced via the EulerOS-SA-2024-1986 advisory. Vulnerability Insight: 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.(CVE-2024-24806) Affected Software/OS: 'libuv' package(s) on Huawei EulerOS Virtualization release 2.10.0. Solution: Please install the updated package(s). CVSS Score: 7.5 CVSS Vector: AV:N/AC:L/Au:N/C:P/I:P/A:P
Cross-Ref:	Common Vulnerability Exposure (CVE) ID: CVE-2024-24806 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 https://github.com/libuv/libuv/security/advisories/GHSA-f74f-cvh7-c6q6 https://lists.debian.org/debian-lts-announce/2024/03/msg00005.html http://www.openwall.com/lists/oss-security/2024/02/08/2 http://www.openwall.com/lists/oss-security/2024/02/11/1 http://www.openwall.com/lists/oss-security/2024/03/11/1
Copyright	Copyright (C) 2024 Greenbone AG

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