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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.3824 python-jinja2 security update 10 November 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: python-jinja2 Publisher: Red Hat Operating System: Red Hat Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-28493 Reference: ESB-2021.2904 ESB-2021.0741 Original Bulletin: https://access.redhat.com/errata/RHSA-2021:4161 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Moderate: python-jinja2 security update Advisory ID: RHSA-2021:4161-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:4161 Issue date: 2021-11-09 CVE Names: CVE-2020-28493 ===================================================================== 1. Summary: An update for python-jinja2 is now available for Red Hat Enterprise Linux 8. Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux AppStream (v. 8) - noarch 3. Description: The python-jinja2 package contains Jinja2, a template engine written in pure Python. Jinja2 provides a Django inspired non-XML syntax but supports inline expressions and an optional sandboxed environment. Security Fix(es): * python-jinja2: ReDoS vulnerability due to the sub-pattern (CVE-2020-28493) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. Additional Changes: For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.5 Release Notes linked from the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 For the update to take effect, all applications using Jinja2 must be restarted. 5. Bugs fixed (https://bugzilla.redhat.com/): 1928707 - CVE-2020-28493 python-jinja2: ReDoS vulnerability in the urlize filter 6. Package List: Red Hat Enterprise Linux AppStream (v. 8): Source: python-jinja2-2.10.1-3.el8.src.rpm noarch: python3-jinja2-2.10.1-3.el8.noarch.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2020-28493 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.5_release_notes/ 8. Contact: The Red Hat security contact is <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. - -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYYrdTdzjgjWX9erEAQisTg/9F0S8/YqSx/B/FSkKppjfOpu6S46KtGEG y/txptauogIJ6XfDpPG7ui90UIuwV2uBF9Qk9BNsqInT1d1phAPSvE/Fnb4857pZ xOeS7+5aPVd8xa/GxiNWU8HQgBG8CGTsIMA8WjkNI1rH1OHkPyKKHwWzepowT/1L zLaSEvyQEtITxzSQhJmQ7sPgafOrwpvwJcbj5rhCkH7Zv/v7M0ChoK+dv/1oRQ+d Rng6TVZBqE+P7tXxUsTocWKVwiFNzUqDPWgNpDY8yP6eYSZAe5sudrRB6ffPChs7 I3d94Kt8Xdts558BIhclbXY5Rx07Z6ZXVh+9sOt3wn/T0a0qRHQZxE0Ww+FIgVz7 /ZoeWDjD201AUFVjzxFE8FdHYSDj5lJUpxm2Msoxw0ipOL8TJM09/ojUMwfpyJdg b4sJISSx4psIUTBHNCVO3htHTazpF7g1KJojh/NcnP3eM2eots6YlCQlmHhoi5TO 57fLk+Z+6rjGqwr6/TY/8N7kE8g1bzskEdXLB0i9l1Oi6J9GVI3WeRHxSeHekPfc ov02p7rk1qIdEQCa1H8OqawHbBqpcbIw64c4cHNCSyD1I3kjtLv+pHqGYvVAqi6W oCLc1F6wffXxd7Chca+4Z64FzywQOyIHq+M+nB8a0KHZazI1gLNxhGNug9KqMEh8 KdxgNIieIOI= =qLGG - -----END PGP SIGNATURE----- - --------------------------END INCLUDED TEXT-------------------- You have received this e-mail bulletin as a result of your organisation's registration with AusCERT. The mailing list you are subscribed to is maintained within your organisation, so if you do not wish to continue receiving these bulletins you should contact your local IT manager. If you do not know who that is, please send an email to auscert@auscert.org.au and we will forward your request to the appropriate person. NOTE: Third Party Rights This security bulletin is provided as a service to AusCERT's members. As AusCERT did not write the document quoted above, AusCERT has had no control over its content. The decision to follow or act on information or advice contained in this security bulletin is the responsibility of each user or organisation, and should be considered in accordance with your organisation's site policies and procedures. AusCERT takes no responsibility for consequences which may arise from following or acting on information or advice contained in this security bulletin. NOTE: This is only the original release of the security bulletin. It may not be updated when updates to the original are made. If downloading at a later date, it is recommended that the bulletin is retrieved directly from the author's website to ensure that the information is still current. Contact information for the authors of the original document is included in the Security Bulletin above. If you have any questions or need further information, please contact them directly. Previous advisories and external security bulletins can be retrieved from: https://www.auscert.org.au/bulletins/ =========================================================================== Australian Computer Emergency Response Team The University of Queensland Brisbane Qld 4072 Internet Email: auscert@auscert.org.au Facsimile: (07) 3365 7031 Telephone: (07) 3365 4417 (International: +61 7 3365 4417) AusCERT personnel answer during Queensland business hours which are GMT+10:00 (AEST). On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBYYtjlONLKJtyKPYoAQgLHhAAkcWnv/G81pMn4F7WRWyl0/AfRZOFCBsJ eDC+4XrkaDxt2X9Y5uZo/49PLnGSbhlIx9XJoVbfRIbZv45io5xPeAyKa4LyNubM A71hsThWofZH+6weNlvijQcmRtBIVBoGZqMwGUoh+23gzZEHshzMomCDFC2UwDCH 0/b3gXxLG3AKGiZUpP5lYy00IMtWk3Iejt2N6dh3FAvcgE5jrbyrOgtB+kHZPCxF d11MLGiwolcDCX4LIex5Qx2Sc1Y8GSSTijyofUWO9WTZAlpBwDkGio1hGQe5JmCq qr8+MMKaXFogEXvt0YBfYpmfe1ysCLMVXP+7TmKsBeMSj6uPfNogFsxQ/EA0YIhA mNslnYwrwUQbxqW+3/bG3YOQLJrgmblPJbFL3hg9ajLpai8i5UJ5iPTf02bNDXXa qhRvZqwDSkJs8hUtSxFPXbt6reJwiYjVElFAHd5fMaLW0/OuoToQ577W8Da8DlDr sF8IPeTmb7oer2BO9oEnm/gDRtunotH+CgD2iy84nt9v9og6hfdeFOC7K1kQOUPm L+VCFoz/FAdOj8WWTpVyLAVR3joertV9eGxuR/BRwpCL/W9hcKY3rOYTVxsp4rih VeE1hFnFyE1Uj5mpuOOa6ChrI5Lcs/OlHCmKUXAvol7VsmUGPNegtMM7Hlr+5yGl Us1/0Q7RYgo= =R4fm -----END PGP SIGNATURE-----