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Gentoo: GLSA-202501-05 libuv hostname truncation normal

A vulnerability has been discovered in libuv, where hostname truncation can lead to attacker-controlled lookups.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202501-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Normal Title: libuv: Hostname Truncation Date: January 23, 2025 Bugs: #924127 ID: 202501-05 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======== A vulnerability has been discovered in libuv, where hostname truncation can lead to attacker-controlled lookups. Background ========== libuv is a multi-platform support library with a focus on asynchronous I/O. Affected packages ================= Package Vulnerable Unaffected -------------- ------------ ------------ dev-libs/libuv < 1.48.0 > = 1.48.0 Description =========== Multiple vulnerabilities have been discovered in libuv. Please review the CVE identifiers referenced below for details. Impact ====== The uv_getaddrinfo function in src/unix/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. Workaround ========== There is no known workaround at this time. Resolution ========== All libuv users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =dev-libs/libuv-1.48.0" References ========== [ 1 ] CVE-2024-24806 https://nvd.nist.gov/vuln/detail/CVE-2024-24806 Availability ============ This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202501-05 Concerns? ========= Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is of utmost importance to us. Any security concerns should be addressed to This email address is being protected from spambots. You need JavaScript enabled to view it. or alternatively, you may file a bug at https://bugs.gentoo.org. License ======= Copyright 2025 Gentoo Foundation, Inc; referenced text belongs to its owner(s). The contents of this document are licensed under the Creative Commons - Attribution / Share Alike license. https://creativecommons.org/licenses/by-sa/2.5 . Explore the challenges posed by libuv regarding hostname cutoff, its impact on user experience, and the essential revisions required for Gentoo.. Gentoo Linux, libuv, hostname truncation, security advisory, normal severity. . LinuxSecurity.com Team

Jan 23, 2025 Gentoo