-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.1308 python-bleach security update 19 April 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: python-bleach Publisher: Debian Operating System: Debian GNU/Linux Impact/Access: Cross-site Scripting -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2021-23980 Reference: ESB-2021.1157 Original Bulletin: http://www.debian.org/security/2021/dsa-4892 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-4892-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso April 18, 2021 https://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : python-bleach CVE ID : CVE-2021-23980 Debian Bug : 986251 It was reported that python-bleach, a whitelist-based HTML-sanitizing library, is prone to a mutation XSS vulnerability in bleach.clean when 'svg' or 'math' are in the allowed tags, 'p' or 'br' are in allowed tags, 'style', 'title', 'noscript', 'script', 'textarea', 'noframes', 'iframe', or 'xmp' are in allowed tags and 'strip_comments=False' is set. For the stable distribution (buster), this problem has been fixed in version 3.1.2-0+deb10u2. 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/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: debian-security-announce@lists.debian.org - -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAmB8RR9fFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0Q1aA/9EAqeE2rVQJqomu6n23fFF08W2g1uGl/VCJyDrFaTFT/Y2D+YZvYmPjYs m0a4YfiBgtnc0ZccXStYkXEtIK91p4caQVEYnnPfsRzGOYciRCDfUBpt7lqMg0K+ Ea2v93V4cIwwFHKPZ9/bbQrU89XrTT/3Ii1gEidKV88cWYYRDNaViW07lctcsh17 U76IxjLVZqiz3mNg1kOm/YY897D/3sQfNhqMmFBzaiGHyCX/+qaj7i4rzOREcyo3 z51DX6dHwZSZmsMpKfXSGqHtk3NGc12JE0aXj4nXf7Wah7lYrGuniBD1f3TbZFwj RJlWFqRoYXoZeZDpbDxaV5cqCOfJALWygPk7psQ2H1kYqhm7vqEhJakq5r0Z+7eJ Dwsqhws+tyVriWnfsVdJDe7GvaYoLAji1bswBi8tEkTBy8huCDQJf5zwsm9Jv+UB 2hpK9YYJEr11r27m2VV68zpt5VGLE/qFPrQ9947oMtv1EC/wx1D+WYiUOIRZ8ZmU zIgbLDF+tNoiHq1q48+TfnQAymkCE89gBA+/oR4EigLoQrWIqGsjNgc889eMLVVS YLGhChHNvLgUnIxzGHz558+FoiKxRdHSip3DG/3G40JADbowliSckRpDQGN7P1MW kMJpCc7i8nO7JcWc/0r78EmmKBXP79vsK6p39HF6ECZeBu5G1Lc= =gdY/ - -----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 iQIVAwUBYHznu+NLKJtyKPYoAQirxA/6AlzpjfCDjBnor+qkDnGJKSC6/SnBWMda JbOeeEZRDUv9no21fnDhEzHRBMReXq/KvN/Bt5PMp6vo38NN/gdoBU3C3ekrKNfe lgi2tkMOiW/0t+A+oaChxf/gPqaR0XsP92yIZy2tmldskPQHlOtUMRsZ5Tzj6Ruu luC4wozoK4R06MI8JZ/q+zS/MKXGtz3QscF2cPgblHVOlj4kV+fCt/UIalECdohS 8vEseqLEMaqfCwDzkhVqL7xr0ikmIPHV8cTS26hfrI+By7PYPeon+oP0fBNRIV1F vvpQFHmMVQg35QIKtGmVyVwn/2mGsoDt7Hnf934y8u1Md9qY+uAqiNmZHqZFFavV 9ymffPaXguomARDkKODnYPtb1JmVnrPauLHnonVL8+yEE4FR2a/A8UzJk6+77EPI tAkbXnZfEstlzqx8iTYVExpIskuypEzJgTkLwo6GMiU4wOAKYqfP9ljo6fb66wJL a7a/rtsMRndA5vu00q4mCKp/ZWi6nwVcqiGkc1p6tcVlLA4tB6VzmSBibTNnCaPy a8YOcYSNxn9Hb9OD0UEMlqRApU2h/uSvNldjQCKLQEQBGq79Ckk8MwcyTp+cSGUz H2uiMrGHM0JerUoehPMH6fIUud83XChNWKTpZlUWOQBJ64MjTPULyUdgqAWhOIvR +gJ0qGOgQaM= =GgJI -----END PGP SIGNATURE-----
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