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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4352 mosquitto security update 18 November 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: mosquitto Publisher: Debian Operating System: Debian GNU/Linux 10 Impact/Access: Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-11779 Reference: ESB-2019.3965 ESB-2019.3584 Original Bulletin: http://www.debian.org/security/2019/dsa-4570 - --------------------------BEGIN INCLUDED TEXT-------------------- - -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA512 - - ------------------------------------------------------------------------- Debian Security Advisory DSA-4570-1 security@debian.org https://www.debian.org/security/ Salvatore Bonaccorso November 17, 2019 https://www.debian.org/security/faq - - ------------------------------------------------------------------------- Package : mosquitto CVE ID : CVE-2019-11779 Debian Bug : 940654 A vulnerability was discovered in mosquitto, a MQTT version 3.1/3.1.1 compatible message broker, allowing a malicious MQTT client to cause a denial of service (stack overflow and daemon crash), by sending a specially crafted SUBSCRIBE packet containing a topic with a extremely deep hierarchy. For the stable distribution (buster), this problem has been fixed in version 1.5.7-1+deb10u1. We recommend that you upgrade your mosquitto packages. For the detailed security status of mosquitto please refer to its security tracker page at: https://security-tracker.debian.org/tracker/mosquitto 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----- iQKTBAEBCgB9FiEERkRAmAjBceBVMd3uBUy48xNDz0QFAl3RcLtfFIAAAAAALgAo aXNzdWVyLWZwckBub3RhdGlvbnMub3BlbnBncC5maWZ0aGhvcnNlbWFuLm5ldDQ2 NDQ0MDk4MDhDMTcxRTA1NTMxRERFRTA1NENCOEYzMTM0M0NGNDQACgkQBUy48xND z0SuPw/+Kjp7jhHNqBz7plrwenpurz3zVmuqmV/BIS5Ws8aydFK0mCx4/KDoT67G 1APNJfNnbOeSURcakSrTYINXoSDTp8+L6NEuEPBByFKZ3NPRRc8YFqaFhDSd0kuT F1hGToXa7KBgzGASIvDKKWRTC8zoywG8+cRJXkrFmWGh3EU9TFp9s0hYcEunvNXR k+fEeV9s91zaeODCR13dwBqJGmgpyJHKRCLLrVtxbpdh+4ibQK51mEXfR2USpXbE SDbk503qfLB3OPeHtP+CA7ueO2/elCcEHYQMvesl2dlEi4jXtOVMcDgq4tuYn1bE kKZY9WgF2LgxjaEgSJewYzxFqYYu/oZBKaZdFfDdaa5TnpFdAVOy9Oy6hIM3lWc1 KJgGoroI2SmLQD7MCUsXJ6DPrHhxC3BGz7/MGhSzrUNPK+WCDpo6bvqh5Xz3Br12 OmNNF1QIgoahx7pOeXpR3EuWVEWWXQxmiT/+o+JmXY8nmnYHMhqs7F3NGa+yaUpP 8nYZ+P0FsaassVQHDuB9SKDRKDfVkZGUg2aVGsVd5v+bej6cjznhdp4u6RtIVKPq OTmXaBEubdMLAYur1cqWguancj2vz2N5j/9odXuP8jW6f4fKU79QDHIXR5nIYrK6 knbd/pHvNdAAq96LgiKv3LqwdEnJKhj3hTJoLlS52dfqcUhp6Qs= =+aZe - -----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 iQIVAwUBXdH8bmaOgq3Tt24GAQiTNw/9FDm04/mMHSo0FQ8grOCveG9bPS+2J5tS b+uLHO1aLxY6eTVb3CmdJptS6HVAknbLAwhwtCaK/t3iKpYobhOptLdAzKMRpyR1 rmZsFvY5aV5btuUZdZ8n5s7FGEzRvlP4hMwf2IRKDDfF4MDihjD1tmL8O5wIY8Vt 0pkhaAZ94ZL027/86/alCt11GBn0eWYZYZvW73sKCItuZvpMV6cXGKN10RKjbqdE tWKVDRTpJXl1o6Wbdph4tiZciUmpbZxFvrZv8day9JY4IXtOkKfBM/594g6KL1eQ 9V8S0T+8c3DiKyVFxaeUWsilT8S3oYn2D7/SX1O5MA9xSzrZWM08UsKWbIp6ytha j/UHC7+B8XauTlrThCJP5Y8jwCXjKaN4ny9Z4d1E1iGaMwhSeh8g2TB+tZe8n94r Yxv7f6ZMGmRnuTe59TqNmcGN9RuhngjAJ64WKNR9wd+3kYL77jRdclZiCz4nc6L6 oWpQBHjm3iJUqwdPr++USU3zgMv7zNF2sirKvhS1xyWb4PjaQDGhVeS1OaphFLky 7gZQ510AbebPjwxEHq2RoXhd4AsxyuQ1hzOuDD3kxrmlNzA+Suh3UhQaVLiM/iMz MNYQvw/3p/5xgg7+h7BoklQozlyqGymVya6cz5JumHlpOuTc2PvCn57YCsSzaygU wTHxUJ3E4IU= =ueqW -----END PGP SIGNATURE-----