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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2019.2300 USN-4036-1: OpenStack Neutron vulnerability 26 June 2019 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: OpenStack Neutron Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Denial of Service -- Existing Account Resolution: Patch/Upgrade CVE Names: CVE-2019-9735 Reference: ESB-2019.1498 ESB-2019.1492 ESB-2019.0863 Original Bulletin: https://usn.ubuntu.com/4036-1/ - --------------------------BEGIN INCLUDED TEXT-------------------- USN-4036-1: OpenStack Neutron vulnerability 25 June 2019 neutron vulnerability A security issue affects these releases of Ubuntu and its derivatives: o Ubuntu 18.10 o Ubuntu 16.04 LTS Summary A system hardening measure could be bypassed. Software Description o neutron - OpenStack Virtual Network Service Details Erik Olof Gunnar Andersson discovered that OpenStack Neutron incorrectly handled certain security group rules in the iptables firewall module. An authenticated attacker could possibly use this issue to block further application of security group rules for other instances. Update instructions The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10 python-neutron - 2:13.0.2-0ubuntu3.4 python3-neutron - 2:13.0.2-0ubuntu3.4 Ubuntu 16.04 LTS python-neutron - 2:8.4.0-0ubuntu7.4 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-2019-9735 - --------------------------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 iQIVAwUBXRLDwmaOgq3Tt24GAQil1w/+NNXgt49OWQ0VoQBjtzShosGxm0SpADLz HCeUkmkjjdqEyKuN4OQH2NT22PJcXShAfvHvfeMyKEOxa+rCorTtD0YzOSldxFna ZRhJjSZ1wz4QUgV/5T/3P0jsRhKAiFAfuWFPGwCIP9UM6rPbov32X3+DZ8qt8yQO TmDxjeoZ97e3TQVsQq6Po2+dR00YOg1xu080CQ1UFvBpCIEOfPIAjBNGjsTaBgSZ SalG03q4iad0SxFRV0BlW5kwFeGLBQlF/tHB4eqUpYC5+forKpU5QAhGqByh1m+B LamOZJBPkQp5oX0GPb+S7dHuWnkdcx5FFcattXk0iBwoyjEVmg+waFTfbGP4FwaN DYenKBIw5C5xhBc951CTyxd05Q3wEwdy6oNYHboCdeBgmLYfVRIUUI+tuos1pERS +YcLLCUJI3LGUc5z/Ed+W3GCNK6JdBFQfnuRuHM2H3/aq0dMfyYU+m6iFzOXehn5 PnkGCDCgwuBUJWbz+GY5XbAnEtwUkOEpZBAwRYznY8Cr6UBXP2uP+sh/vkAKhzcq du91YKaIhTJW2Hqjqt5LCWTPHhmdw7bAduycAJ8+X3lo3kjhXQ+cb+OSQd1ieklt +TxVlRKbn3sK24KtI4tEHC9Aye44r1C+vDvD0eLjQl/PQjs5XXK3bpxHyM1Y2ioJ 5vKYo9XoJPg= =2+e7 -----END PGP SIGNATURE-----