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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.0561.2 Bind vulnerabilities 26 February 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: bind9 Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Denial of Service -- Remote/Unauthenticated Access Confidential Data -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-6465 CVE-2018-5745 CVE-2018-5744 Reference: ESB-2019.0549 Original Bulletin: http://www.ubuntu.com/usn/usn-3893-1 http://www.ubuntu.com/usn/usn-3893-2 Comment: This bulletin contains two (2) Ubuntu security advisories. Revision History: February 26 2019: Added USN-3893-2 February 25 2019: Initial Release - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3893-1 February 22, 2019 bind9 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: - - Ubuntu 18.10 - - Ubuntu 18.04 LTS - - Ubuntu 16.04 LTS - - Ubuntu 14.04 LTS Summary: Several security issues were fixed in Bind. Software Description: - - bind9: Internet Domain Name Server Details: Toshifumi Sakaguchi discovered that Bind incorrectly handled memory. A remote attacker could possibly use this issue to cause Bind to consume resources, leading to a denial of service. This issue only affected Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-5744) It was discovered that Bind incorrectly handled certain trust anchors when used with the "managed-keys" feature. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2018-5745) It was discovered that Bind incorrectly handled certain controls for zone transfers, contrary to expectations. (CVE-2019-6465) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10: bind9 1:9.11.4+dfsg-3ubuntu5.1 Ubuntu 18.04 LTS: bind9 1:9.11.3+dfsg-1ubuntu1.5 Ubuntu 16.04 LTS: bind9 1:9.10.3.dfsg.P4-8ubuntu1.12 Ubuntu 14.04 LTS: bind9 1:9.9.5.dfsg-3ubuntu0.19 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3893-1 CVE-2018-5744, CVE-2018-5745, CVE-2019-6465 Package Information: https://launchpad.net/ubuntu/+source/bind9/1:9.11.4+dfsg-3ubuntu5.1 https://launchpad.net/ubuntu/+source/bind9/1:9.11.3+dfsg-1ubuntu1.5 https://launchpad.net/ubuntu/+source/bind9/1:9.10.3.dfsg.P4-8ubuntu1.12 https://launchpad.net/ubuntu/+source/bind9/1:9.9.5.dfsg-3ubuntu0.19 ============================================================================== ========================================================================== USN-3893-2: Bind vulnerabilities 25 February 2019 bind9 vulnerabilities ========================================================================== A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 12.04 ESM Summary Several security issues were fixed in Bind. Software Description o bind9 - Internet Domain Name Server Details USN-3893-1 fixed a vulnerability in Bind. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details: It was discovered that Bind incorrectly handled certain trust anchors when used with the "managed-keys" feature. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. (CVE-2018-5745) It was discovered that Bind incorrectly handled certain controls for zone transfers, contrary to expectations. (CVE-2019-6465) Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 12.04 ESM bind9 - 1:9.8.1.dfsg.P1-4ubuntu0.27 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 USN-3893-1 o CVE-2018-5745 o CVE-2019-6465 - --------------------------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. 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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 iQIVAwUBXHSY1GaOgq3Tt24GAQjZjRAAqernrwENyBkX3WOYeNKr9OuHpGSh/uC4 JCZM/4JhFI13RLOBXthxX0/SSFKW/7q3JUAbvJhvUjAEelzh2EUgZs9yGUom8FSL 9T7zotfr1ftQBE1uJHjK39Zeg5Pv7P/PQnlCoSHcrrJNaC2SozcLc58dcU4fEQu1 FJXEnPWvc6w6KK/Ety8USZkxndiMVrmCzwdzVHdQWi44yHtK8b1qAgtxnzGnYcLB OhKyzSW+L7mK/3O+1hU60fmFdQ9UDWOsSK7eQF9UzZJlpjhntXyb4+kGm2Ek0yAB KfQvVXnbtGtfIxgmS1H4AwPehUm5/t02sYfwnQyVB/khJtedwGKovXhVw3i+qk5b slFq8OX+Sol/2JFlYsIE6yxdDE1yLhN8nmmQvioW3B6tqeFDu7Zma1WPPVLnPSrK oS9EL5MLbV9sovyovXGRoUHXR65RPT30xqip4i+VSAK5FFhOGf7yc5o7Z151ZTmH HQY5hB2NurLRIIblbXVICljpRHpAAj7bO+ZrK2KXmNhclN/FAyDIlWIPIYvOPgr6 JQR0+aNIS2qV6BA9Sa1+Sd9McJFzh3RXLyhTeDm6yhBVB+xIP4IaxW//uvI518+3 M7z50ykTUFhajQvyoovCTGzIO7+IezmA6cFy+E1gettTcygVwLL55qAWVV4qRZKf VcbZU9jJqSU= =dxXc -----END PGP SIGNATURE-----