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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.1507 Mozilla Foundation Security Advisory 2021-19: Security Vulnerabilities fixed in Thunderbird 78.10.1 5 May 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Thunderbird Publisher: Mozilla Operating System: Windows Impact/Access: Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2021-29951 Reference: ESB-2021.1506 Original Bulletin: https://www.mozilla.org/en-US/security/advisories/mfsa2021-19/ - --------------------------BEGIN INCLUDED TEXT-------------------- Mozilla Foundation Security Advisory 2021-19 Security Vulnerabilities fixed in Thunderbird 78.10.1 Announced: May 4, 2021 Impact: moderate Products: Thunderbird Fixed in: Thunderbird 78.10.1 # CVE-2021-29951: Thunderbird Maintenance Service could have been started or stopped by domain users Reporter: James Forshaw Impact: moderate Description The Maintenance Service granted SERVICE_START access to BUILTIN|Users which, in a domain network, grants normal remote users access to start or stop the service. This could be used to prevent the browser update service from operating (if an attacker spammed the 'Stop' command); but also exposed attack surface in the maintenance service. Note: This issue only affected Windows operating systems older than Win 10 build 1709. Other operating systems are unaffected. References o Bug 1690062 - --------------------------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 iQIVAwUBYJHWjuNLKJtyKPYoAQgVWBAArrdTw50+dc3XN4KV7WFFSH6IEz9F1zW8 fMJFe5HWne/qPoR4bZbSw0tTamhpaq926mTMhALXgRtwTLVkcAYK4oC75XqI9ww9 ltHrxD8OhEqw4P9BTSAPl3Smx1/XBlpxa12bfOyMWiDBqNHeIwYQ9bn7cEl6P8S2 WVrx0DyO2rMbQJvp1oh/klb2aEMcv23RZB7piibkemoZIl4ld6Mup+ZP39iJqzuL h1vnVoYy0Y0v2WHLZCMj0ecUUVM8IOEaU7LdzQDluNGNfrVzoWU7HgkEXfHQFH5G N76T+5bQy1uaDuFjHoMwDp+XTB7wD/RFY+sJLEgqiGy7lO37QE8+8WKBLAWfLODV xqhwn7pnQ5AHmzqyx5S8mYglJHrnT1TO4Fm7ZJNVp2ckVRWEFhKmakfQbWFS3CCG oOggFd1mVXM+SgQpgXDUsMI/9NcN8W1VQQaL0PjIC5nidZMzTbu96du6buzhaFyG 5tdG/7spg7Sp71ZiKz3UlQrLVODy9EeORTSc0htblkDrFsqUBV/ZUn4zfFF9M8dl 89gMumKOSVz8uTKUMmyqQIt8edOhYxfbnubpnmr/0Cf+O1S/2T+VVy9yU/RAWJwa tDEY7f2OdxpGw9JW7Y0t4c4ZIfalrBFdPTfR9oZa19pY83JWQXJ9yDR+q/+RNe/B Y1eNmN8EyfQ= =sIHi -----END PGP SIGNATURE-----