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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2020.1762 USN-4361-1: Dovecot vulnerabilities 19 May 2020 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Dovecot Publisher: Ubuntu Operating System: Ubuntu UNIX variants (UNIX, Linux, OSX) Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2020-10967 CVE-2020-10958 CVE-2020-10957 Original Bulletin: https://usn.ubuntu.com/4361-1/ Comment: This advisory references vulnerabilities in products which run on platforms other than Ubuntu. It is recommended that administrators running Dovecot check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4361-1: Dovecot vulnerabilities 18 May 2020 dovecot vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 20.04 LTS o Ubuntu 19.10 Summary Several security issues were fixed in Dovecot. Software Description o dovecot - IMAP and POP3 email server Details Philippe Antoine discovered that Dovecot incorrectly handled certain data. An attacker could possibly use this issue to cause a denial of service. (CVE-2020-10957, CVE-2020-10967) Philippe Antoine discovered that Dovecot incorrectly handled certain data. An attacker could possibly use this issue to cause a denial of service or execute arbitrary code. (CVE-2020-10958) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 20.04 LTS dovecot-core - 1:2.3.7.2-1ubuntu3.1 Ubuntu 19.10 dovecot-core - 1:2.3.4.1-5ubuntu3.1 To update your system, please follow these instructions: https:// wiki.ubuntu.com/Security/Upgrades . In general, a standard system update will make all the necessary changes. References o CVE-2020-10957 o CVE-2020-10958 o CVE-2020-10967 - --------------------------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. 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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 iQIVAwUBXsMTWeNLKJtyKPYoAQhEdQ//X15jdwh3KQwSTx+rze5ODR6dX0KCt0Vb IbgESY/7+7rbfbzAymUcWOMaVdU4C/SWhYdU8LCPeKbck43KspwKtaSUJ1w3HuSj iN/EYKF3N2SDXYbhRNrNMuK9SM/BFylWxpPDRHjo/QAvErlR+Ugdh+MnzwFUoAlw jzkTxricXZNwEt574ZzUlh6LQsvFp1l5In1YuDrPYxOSDJdJH8fz1Y8H+8aDZGNq oWdE+91eKKCvgoeejHJmo0hpaRbgxBp1XZz1hcVpnUarhvYtx3pqdqitB5KAnNEJ dlgnCU32lIFRmCEhAY8urwWf6Z8Q2v1nxbhTaujLQ0PDMLpX14ccFs0UxjmZuhE0 WxmUZFVYiNX7R6BZYTMkPWRU8CcW5CMoc6ICvYDlNXFbkir02+mGNwAEyHS7FlPe YCUhcq7lkFbiG0htKkNl9sAIPq8iFF5ediEMnV8eqeqPT3qVItPrSUqxAjcouod0 HX4m12fQ4WV3T73OS8sIRfNRtvFlBYkwQXOslfNtpdwNnh/x2SuedEurOI3EQ68F nE9EzWhgXCRBCRiBr4BvonIqkq9oXA/bdPdawDuBQ/qIRX/eNiBDAfQeFYT8mQGt 2NCu1pQ0aOrLkPQCSQNnvuo3PjAeoVj2DVhYYPIq1+8PRNg2300pLv1rOnA+4nQq TLy+ao50fhQ= =pqoT -----END PGP SIGNATURE-----