22 November 2019
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.4419 USN-4197-1: Bind vulnerability 22 November 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-2019-6477 Reference: ESB-2019.4410 Original Bulletin: https://usn.ubuntu.com/4197-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4197-1: Bind vulnerability 21 November 2019 bind9 vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 19.10 o Ubuntu 19.04 o Ubuntu 18.04 LTS Summary Bind could be made to consume resources if it received specially crafted network traffic. Software Description o bind9 - Internet Domain Name Server Details It was discovered that Bind incorrectly handled certain TCP-pipelined queries. A remote attacker could possibly use this issue to cause Bind to consume resources, resulting in a denial of service. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 19.10 bind9 - 1:9.11.5.P4+dfsg-5.1ubuntu2.1 Ubuntu 19.04 bind9 - 1:9.11.5.P1+dfsg-1ubuntu2.6 Ubuntu 18.04 LTS bind9 - 1:9.11.3+dfsg-1ubuntu1.11 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-2019-6477 - --------------------------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 iQIVAwUBXdc/0WaOgq3Tt24GAQib2hAAkM9yRjvjdK4wIShR+HN10Nabt+UuZGcC XTXZqhQhDLyAXRsn0w+XfDhxI8QWjQChEUkIsupO7gmCyIy1dLrRakwBRwzjQS8U 6FZqy5RSMC6Yd0QvuYxIPMPJpNJvkIboOUz2zm9/xKwtUeyzX3rAg701a8Yc2zPo 0b8FWMM1AdrJS2QxCs453HX6LJ45XliLiiMQOHfcguz2rZG1Ztd+O/tx15gHVO67 8maMk4PxJYOSfnnbHKIxZubC1oHkc6PRlfs7H+gDtpRQcCazT7fMLsGcSwg7gQix kv9hHt4e70Uvvnm0pU0EFfdwDhTL+xe1uX4iv/RtRtPgKvqhiOR/7UPQ4328pE1y 8gv7fVcFO8fLx+edvYhSv3nxmj4p9kjCKbRwwMql30GB3MHGOfGTXGSsXCXIKHZq VfObYCoSUiMWbz0dLHInk04iPBFplrAiDc46QFQGenRl71Zg3zL+VDshjbBO5NtB DiRsJT0a/2v0JYe8W2+SwdIlKynt7YJSGny0BdurlyivSXLWxhE2fWnQviuBkuo+ hySievRsZ7Tez0P0vdEk4lezCrjFl7NOCfxp5wozB659dp3z2i8iZIloyfQGFdB1 CL/sBbLgH/TlpR6buamzAkHSmKASqEuJfsOwIemRi7P5DQny2vHLFWCNDqKmoUXM ltqe50bp1+Q= =m2Lc -----END PGP SIGNATURE-----