- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202208-18 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Low Title: Motion: Denial of service Date: August 10, 2022 Bugs: #760714 ID: 202208-18 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= A vulnerability in Motion allows a remote attacker to cause denial of service. Background ========= Motion is a program that monitors the video signal from one or more cameras and is able to detect motions. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 media-video/motion < 4.3.2 >= 4.3.2 Description ========== The Motion HTTP server does not correctly perform URL decoding. If the HTTP server receives a request for a URL containing an incomplete percent-encoded character, a flaw in parsing results in an infinite loop trying to parse the rest of the character, which eventually results in a denial of service condition when reading out-of-bounds. Impact ===== A remote attacker can trigger a denial of service condition in Motion. Workaround ========= There is no known workaround at this time. Resolution ========= All Motion users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose ">=media-video/motion-4.3.2" References ========= [ 1 ] CVE-2020-26566 https://nvd.nist.gov/vuln/detail/CVE-2020-26566 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202208-18 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 security@gentoo.org or alternatively, you may file a bug at https://bugs.gentoo.org. License ====== Copyright 2022 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