21 June 2019
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.2225 USN-4026-1: Bind vulnerability 21 June 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Bind Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2019-6471 Reference: ESB-2019.2212 Original Bulletin: https://usn.ubuntu.com/4026-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4026-1: Bind vulnerability 20 June 2019 bind9 vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 19.04 o Ubuntu 18.10 o Ubuntu 18.04 LTS Summary Bind could be made to crash if it received specially crafted network traffic. Software Description o bind9 - Internet Domain Name Server Details It was discovered that Bind incorrectly handled certain malformed packets. A remote attacker could possibly use this issue to cause Bind to crash, resulting in a denial of service. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.04 bind9 - 1:9.11.5.P1+dfsg-1ubuntu2.5 Ubuntu 18.10 bind9 - 1:9.11.4+dfsg-3ubuntu5.4 Ubuntu 18.04 LTS bind9 - 1:9.11.3+dfsg-1ubuntu1.8 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-2019-6471 - --------------------------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 firstname.lastname@example.org 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: email@example.com 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 iQIVAwUBXQwsbmaOgq3Tt24GAQidsA/+MI2XiVs1V3S7AAVdzlnw1PIxo6YEvjo7 blJN+Sg/aLNj0hE/FxhowQ70mRtSSd4Rmme2OBZdeJ99sAbOev5mrz9SF1tyBpCl E7uK6u5TqkJYdXz3ijVJ7UR8IBRF6dLt2sEF6QA4rYyzGQeEf+CC0OCpCtMtvp4o sos8DX7jcERG6OwZ8rvzF9GblRADl3PCU5KX9E1/zWghyyW7Wh6q1ws2i7nipvqX oUT8m+dGR/LlzFJ8EtdnJFQHQHqn8wj7JAmoYcqoibgumsKELQAQfoKtyeAzj9Pj gNWo5RIH4ksKi+3cgFRujL1eFgvdhC4Ex3Xekx1FZ1WM9QvdkE59vwal//UxpkRt yTCe+IhhkvMPEnDWNJRq2vxFZaipLbE5FqMO4ZnpLnghvdHvluQjIJ10uT02JxK4 wljO3HnvKlMhFekRnWg8GBQ3NBDRJ1GePdzSdemWCrGAnlRf0JOgr8DSY4sGNJ7O qzBh+KsF98196moqPXiQL+lvYMDevIiLk0CeqofeeTCtK2Bt/i0DhJXFEusH6fCB 0a/DDkdBrhaCI+KruaV/oSD71EbOnowL7+wridCmBFFM/oj3xc2v+RhhpSErls2X DIy/omh5LNk9Osj72IVESMEnjNAo0JH42y9SLmpY2MFVYCvM2icLv9fVVqMpK1M4 X/0a5qGi+Lg= =22Lv -----END PGP SIGNATURE-----