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Gentoo: GLSA-202107-19 Low Severity: Jinja DoS Resolution

An inefficient regular expression could be exploited to cause a Denial of Service condition.. - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Gentoo Linux Security Advisory GLSA 202107-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - https://security.gentoo.org/ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Severity: Low Title: Jinja: Denial of service Date: July 08, 2021 Bugs: #768300 ID: 202107-19 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - Synopsis ======= An inefficient regular expression could be exploited to cause a Denial of Service condition. Background ========= Jinja is a template engine written in pure Python. Affected packages ================ ------------------------------------------------------------------- Package / Vulnerable / Unaffected ------------------------------------------------------------------- 1 dev-python/jinja < 2.11.3 > = 2.11.3 Description ========== The 'urlize' filter in Jinja utilized an inefficient regular expression that could be exploited to consume excess CPU. Impact ===== An attacker could cause a Denial of Service condition via crafted input to the 'urlize' Jinja filter. Workaround ========= There is no known workaround at this time. Resolution ========= All Jinja users should upgrade to the latest version: # emerge --sync # emerge --ask --oneshot --verbose "> =dev-python/jinja-2.11.3" References ========= [ 1 ] CVE-2020-28493 https://nvd.nist.gov/vuln/detail/CVE-2020-28493 Availability =========== This GLSA and any updates to it are available for viewing at the Gentoo Security Website: https://security.gentoo.org/glsa/202107-19 Concerns? ======== Security is a primary focus of Gentoo Linux and ensuring the confidentiality and security of our users' machines is ofutmost 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 2021 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/ . Service interruption concerns in Jinja could result in decreased efficiency. It is advised to upgrade to reduce potential hazards.. Gentoo Linux,Jinja Fix,DoS Exploit,Security Advisory. . Severity: Low. LinuxSecurity.com Team

Jul 08, 2021 •Low Gentoo