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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.4541 mediawiki security update 23 December 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: mediawiki Publisher: Debian Operating System: Debian GNU/Linux Impact/Access: Cross-site Scripting -- Remote with User Interaction Access Confidential Data -- Unknown/Unspecified Resolution: Patch/Upgrade CVE Names: CVE-2020-35480 CVE-2020-35479 CVE-2020-35477 CVE-2020-15005 Reference: ESB-2020.4509 Original Bulletin: https://lists.debian.org/debian-lts-announce/2020/12/msg00034.html - --------------------------BEGIN INCLUDED TEXT-------------------- - ------------------------------------------------------------------------- Debian LTS Advisory DLA-2504-1 debian-lts@lists.debian.org https://www.debian.org/lts/security/ Roberto C. S=E1nchez December 22, 2020 https://wiki.debian.org/LTS - ------------------------------------------------------------------------- Package : mediawiki Version : 1:1.27.7-1~deb9u7 CVE ID : CVE-2020-15005 CVE-2020-35477 CVE-2020-35479 CVE-2020-35480 Multiple security issues were discovered in MediaWiki, a website engine for collaborative work. CVE-2020-15005 Private wikis behind a caching server using the img_auth.php image authorization security feature may have had their files cached publicly, so any unauthorized user could view them. CVE-2020-35477 Blocks legitimate attempts to hide log entries in some situations. CVE-2020-35479 Allows XSS via BlockLogFormatter.php. Language::translateBlockExpiry itself does not escape in all code paths. For example, the return of Language::userTimeAndDate is is always unsafe for HTML in a month value. CVE-2020-35480 Missing users (accounts that don't exist) and hidden users (accounts that have been explicitly hidden due to being abusive, or similar) that the viewer cannot see are handled differently, exposing sensitive information about the hidden status to unprivileged viewers. For Debian 9 stretch, these problems have been fixed in version 1:1.27.7-1~deb9u7. We recommend that you upgrade your mediawiki packages. For the detailed security status of mediawiki please refer to its security tracker page at: https://security-tracker.debian.org/tracker/mediawiki 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----- iQIzBAABCgAdFiEEIYZ1DR4ae5UL01q7ldFmTdL1kUIFAl/in5sACgkQldFmTdL1 kUK2Dw/8D1lQ/XXP+/SI6KN3gbSYxvb5ZbsmX9vleEbuXTibI8pMtAO6H4ytGvuz k20hxZx+p0c5fsrMIYfNqQ8kmR/ZzmX9nRl+Jwdem2s6dzkZeK8CISpMS07x64ae Orqf+m8ynUDCY/I9NPmOdUskjAtBjWRaeywhNuq/f/8oPqy9kiDW71367TX35mck 7MHQCNUsGln7ocrj6n2D3gkSLa5soSflDXYFoMduo8Ogk3RoeRt7ghkH27O8RKBJ Cbj5WjQEmhlDzHY9UWoF7At1vgdFybF3XY2S1Nngx+D5kGXkLpenEpSyfErAfejY St250s+Cu7iaol4sNfW66GBYqctMaa/kJnUZA87S20mdxSAoUOHngJSuQOCnSTqH MXMUFXfqWuxZJXoXDZVrLFReaRGLpszhdFLvb3uClCk94FdKyqnNsovKlHpswr0e uWWQtYFrdqPnEmJGXy2ZxhXj/pIPYuiQ4dq8NvyL+7nQ5ACy4gR1fK60peCovbSe 7FufX0jZZgNkVF0Zt10LNiP9LPcDNljqfvtZQePjJuMrndxvfYMZ7IaAU9BFvmtd gsNCjhiUDkssc8PwrndM4FrfO79hC06737DZnUSzMTKeI7fcUYZC8dSBt8J/YRph ONPZaj7vrI7wX2rb9ggviCnC4X/h0h5hvsziuZ0FSwo8MRdgqP8= =48rW - -----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 iQIVAwUBX+K3gONLKJtyKPYoAQg+LRAAhBZx39z70UIjoidiuUFW4mPE2cCLtWqm SqnOciqg0XU/CSk2z5Pvz8hIlorINfxjCBzv8W5IvjU7wFoiTLWdZJiY6jI8BRUf mPALhEM9quatQbc9jW5El/q8OWyuhYGg13Qvqqfd5e6tNqsv3c6xCcqZ3ICV1CUv Zqp8khQMpWrlfgxhRdgNa8CMkBAootirTAQppAWoC/Nsdx8bdT9v7jxzVmrA9IV2 /jV1sAkA2tFLwtSObwJtPqQ7mmSBGg5c85/OMt5k1IarQwU42yKQayzj6JKKTZkS 5Mh0gQEVWcQXL7fEs3URi6JZSjmBmoptgphBdNHCUQybAI8SSaYvP90IEC3fFfyK qalmQx0Lv+DY1DWFcB+pjic7dwVyXXEu1yEoR/YPiEtblsdFrwGmSqzYq5IROSmN ww/BjBfMC/JOO7WT7f1XAehP9pWZiwBcvmB3XKvWRpLGOOSo5WFV4RIWEZk3qF5F BJ9DZG1ewp1A4NLCqK2khfSCzcNQYHZKEz51MKFhsoXQpF/evt8Chp+LH6+CBKuX KowfkWDG19QOHpknkA/YLZPwdAMpGVsUAxaDcJeoWkkPTNMgokqGZ7HcKGWR7bEW 8hJjxZzUa70eaHbXk6oZcczkw6lHGa+5P6SwdBY+9hDw0qiisswb92HLaHuUPMxT gHMgN5VDApU= =lGYI -----END PGP SIGNATURE-----