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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.1037 lxml security update 25 March 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: lxml Publisher: Debian Operating System: Debian GNU/Linux Windows UNIX variants (UNIX, Linux, OSX) Impact/Access: Cross-site Scripting -- Remote with User Interaction Resolution: Patch/Upgrade CVE Names: CVE-2021-28957 Original Bulletin: https://lists.debian.org/debian-lts-announce/2021/03/msg00031.html Comment: This advisory references vulnerabilities in products which run on platforms other than Debian. It is recommended that administrators running lxml check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - - ------------------------------------------------------------------------- Debian LTS Advisory DLA-2606-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Thorsten Alteholz March 24, 2021 https://wiki.debian.org/LTS - - ------------------------------------------------------------------------- Package : lxml Version : 3.7.1-1+deb9u4 CVE ID : CVE-2021-28957 An issue has been found in lxml, a pythonic binding for the libxml2 and libxslt libraries. Due to missing input sanitization, XSS is possible for the HTML5 formaction attribute. For Debian 9 stretch, this problem has been fixed in version 3.7.1-1+deb9u4. We recommend that you upgrade your lxml packages. For the detailed security status of lxml please refer to its security tracker page at: https://security-tracker.debian.org/tracker/lxml Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS - -----BEGIN PGP SIGNATURE----- iQKTBAEBCgB9FiEEYgH7/9u94Hgi6ruWlvysDTh7WEcFAmBbgKJfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDYy MDFGQkZGREJCREUwNzgyMkVBQkI5Njk2RkNBQzBEMzg3QjU4NDcACgkQlvysDTh7 WEcjHQ//cA6P4tdJCOA4LZ+fuSAufLAn3jUCPLvBZ37HZGRuyUqZnfLOSukaBH08 r2XgGZHKUpLgqo52ARXiKzTup3GgiLJxIHwZ1lAnF+7h+F9wtUTJq/B1kgYonxAn UZ/19mn/rv88j/JU3ZZ578Sxbrdss0Cms5wyckm+qMOXiE23logm1QUFR1Ocme7R ODoRw3MzYcnka57FHE16SbXjNRixVNTNEb4HmzFykBcHguUP+AaKXanXgBZqe5z5 YbPhIKfhyEQ8tvrUUgNYhmMUUj15ZfhJM++mw0ne+ny2CB3b7BJfBS8mOh4ZnWOT Up9hIqRQ7enfFGzMXHK/+dBNUbe7BkaAHFq9HSWdRqw+iQOrY8lM1sT10ztg2EVO T0ydZCgZ9PdBthZ6t7OW9dt5ZwHGvdXoC9TzYbeBeJa+zmIgcr7e/ks3LzpqRoxS ZyV/ad8AdjSW19WiQCEjWA5OUIOt/ShwEqxHUvj9f9dNc/3ujMAEJ/pNB/ebA3uj OJYPJ2GKteb5fxZNDaMo/ZP63xmuJxMdNb/+Yl9jqqkDN7MG+cpCrr4ThvjnSkXz 2BI6wjD/ElLUmcTZf2JnfJzIMsOLzhpbLVMo1LrucmMo2Zd4P0mwWgxUoTuf8i/y JzM5UL/LxzWM0vpPa8jE4pgSamNAZzM6JuCOFyLJ/Q+GvSfqRKc= =w/Lg - -----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). 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