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Debian DSA-4643-1: High Severity XSS Risk in Python-Bleach Library

It was reported that python-bleach, a whitelist-based HTML-sanitizing library, is prone to a mutation XSS vulnerability in bleach.clean when strip=False and 'math' or 'svg' tags and one or more of the RCDATA tags were whitelisted. . - ------------------------------------------------------------------------- Debian Security Advisory DSA-4643-1 This email address is being protected from spambots. You need JavaScript enabled to view it. https://www.debian.org/security/ Salvatore Bonaccorso March 20, 2020 https://www.debian.org/security/faq - ------------------------------------------------------------------------- Package : python-bleach CVE ID : CVE-2020-6816 Debian Bug : 954236 It was reported that python-bleach, a whitelist-based HTML-sanitizing library, is prone to a mutation XSS vulnerability in bleach.clean when strip=False and 'math' or 'svg' tags and one or more of the RCDATA tags were whitelisted. For the stable distribution (buster), this problem has been fixed in version 3.1.2-0+deb10u1. We recommend that you upgrade your python-bleach packages. For the detailed security status of python-bleach please refer to its security tracker page at: https://security-tracker.debian.org/tracker/source-package/python-bleach Further information about Debian Security Advisories, how to apply these updates to your system and frequently asked questions can be found at: https://www.debian.org/security/ Mailing list: This email address is being protected from spambots. You need JavaScript enabled to view it. . Debian Security Advisory DSA-4644-2 addresses a critical vulnerability in the python-requests library, which could lead to potential information leakage during HTTP requests.. Python Bleach,XSS Issue,Debian Security Advisory,HTML Sanitizing Library,Security Update. . Severity: Important. LinuxSecurity.com Team

Mar 20, 2020 •Important Debian