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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2021.0113 USN-4690-1: coTURN vulnerability 13 January 2021 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: coTURN Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Reduced Security -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-26262 Reference: ESB-2021.0098 Original Bulletin: https://ubuntu.com/security/notices/USN-4690-1 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4690-1: coTURN vulnerability 11 January 2021 coTURN could be made to crash or run programs if it received specially crafted network traffic. Releases o Ubuntu 20.10 o Ubuntu 20.04 LTS o Ubuntu 18.04 LTS o Ubuntu 16.04 LTS Packages o coturn - TURN and STUN server for VoIP Details It was discovered that coTURN allowed peers to connect and relay packets to loopback addresses in the range of 127.x.x.x. A malicious user could use this vulnerability to insert packages into the loopback interface. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.10 o coturn - 4.5.1.3-1ubuntu0.1 Ubuntu 20.04 o coturn - 4.5.1.1-1.1ubuntu0.20.04.2 Ubuntu 18.04 o coturn - 4.5.0.7-1ubuntu2.18.04.3 Ubuntu 16.04 o coturn - 4.5.0.3-1ubuntu0.4 In general, a standard system update will make all the necessary changes. References o CVE-2020-26262 - --------------------------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/6AleNLKJtyKPYoAQikShAAm2TzqiuU6x05G7GxqS4fldLm9EhHlyk+ vGpDJB7N7BIP5G1WKWaOl20UAiNcZa9aXiibMfBzaIpRH+O1HEhfjoX6H4/YjNny FdJAj4FC9V7U/wMA5bVpJzsLcGWsufhKaiqGm6ChRjvUd5WAtMH3hbyHt6ZthMpG tpdRnBXb1AP0i3fGUhLdCmLRnpMUmF8ek59Bzz4lNnGog6Rrnnh534BaXmzwND7s WhfXYhUlwEN/EsWgFcWFibGRGrK9fbHj1IzVepv+ZnKjgFXYN7QWoW702+XzmEPn e+vWD6DurBewszSx1DkmgAoy4SIAYSFgB9m9ezTRlJxBs8EHL5RCaxDPB5nysjcb vr4achR5XWKUNho1DNEfxge16GsFSXpT+h0ejBzTbtfgId3kogDSnTqj0I+lx4EU gSNcPY5GYY/bpd//TYlL3jg/AiCP3GLMpiWmQiRviOIIo+vMfqfDk9zNTnJC0AyB CbXJv0jlSTXjjeSlt9VIpGI5I6/+9UjbrfLMpd2GHGqh+Zef4JeydMmF8T3x39vi +zW52DEq4dSHeE0kLyDT+DlLtumdBj+huSeism7yWLMAXaVTfdlrHBboYG1mHxkW gd4kwKT8tgP8NIYEz6rMUnR5fUTu+qKRu0DDwl9xl0NwP821jOSmU6oskW0VaLGy nLYtXWC0VWw= =iLR8 -----END PGP SIGNATURE-----