Security update for python-Jinja2 SUSE Patch security@suse.de SUSE Security Team SUSE-SU-2021:0607-1 Final 1 1 2021-02-25T17:43:25Z current 2021-02-25T17:43:25Z 2021-02-25T17:43:25Z cve-database/bin/generate-cvrf.pl 2017-02-24T01:00:00Z Security update for python-Jinja2 This update for python-Jinja2 fixes the following issues: - CVE-2020-28493: Improve the speed of the 'urlize' filter by reducing regex backtracking. Email matching requires a word character at the start of the domain part, and only word characters in the TLD. (bsc#1181944) The CVRF data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0). SUSE-2021-607,SUSE-SLE-Manager-Tools-12-2021-607,SUSE-SLE-Module-Adv-Systems-Management-12-2021-607,SUSE-SLE-Module-Public-Cloud-12-2021-607 Copyright SUSE LLC under the Creative Commons License 4.0 with Attribution (CC-BY-4.0) https://www.suse.com/support/update/announcement/2021/suse-su-20210607-1/ Link for SUSE-SU-2021:0607-1 https://lists.suse.com/pipermail/sle-security-updates/2021-February/008376.html E-Mail link for SUSE-SU-2021:0607-1 https://www.suse.com/support/security/rating/ SUSE Security Ratings https://bugzilla.suse.com/1181944 SUSE Bug 1181944 https://www.suse.com/security/cve/CVE-2020-28493/ SUSE CVE CVE-2020-28493 page SUSE Linux Enterprise Module for Advanced Systems Management 12 SUSE Linux Enterprise Module for Public Cloud 12 SUSE Manager Tools 12 python-Jinja2-2.8-19.23.1 python-Jinja2-emacs-2.8-19.23.1 python-Jinja2-vim-2.8-19.23.1 python3-Jinja2-2.8-19.23.1 python-Jinja2-2.8-19.23.1 as a component of SUSE Linux Enterprise Module for Advanced Systems Management 12 python3-Jinja2-2.8-19.23.1 as a component of SUSE Linux Enterprise Module for Advanced Systems Management 12 python-Jinja2-2.8-19.23.1 as a component of SUSE Linux Enterprise Module for Public Cloud 12 python3-Jinja2-2.8-19.23.1 as a component of SUSE Linux Enterprise Module for Public Cloud 12 python-Jinja2-2.8-19.23.1 as a component of SUSE Manager Tools 12 python3-Jinja2-2.8-19.23.1 as a component of SUSE Manager Tools 12 This affects the package jinja2 from 0.0.0 and before 2.11.3. The ReDoS vulnerability is mainly due to the `_punctuation_re regex` operator and its use of multiple wildcards. The last wildcard is the most exploitable as it searches for trailing punctuation. This issue can be mitigated by Markdown to format user content instead of the urlize filter, or by implementing request timeouts and limiting process memory. CVE-2020-28493 SUSE Linux Enterprise Module for Advanced Systems Management 12:python-Jinja2-2.8-19.23.1 SUSE Linux Enterprise Module for Advanced Systems Management 12:python3-Jinja2-2.8-19.23.1 SUSE Linux Enterprise Module for Public Cloud 12:python-Jinja2-2.8-19.23.1 SUSE Linux Enterprise Module for Public Cloud 12:python3-Jinja2-2.8-19.23.1 SUSE Manager Tools 12:python-Jinja2-2.8-19.23.1 SUSE Manager Tools 12:python3-Jinja2-2.8-19.23.1 important To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch". https://www.suse.com/support/update/announcement/2021/suse-su-20210607-1/ https://www.suse.com/security/cve/CVE-2020-28493.html CVE-2020-28493 https://bugzilla.suse.com/1181944 SUSE Bug 1181944