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-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.3490 nginx vulnerabilities patched in Ubuntu 8 November 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: nginx-common Publisher: Ubuntu Operating System: Ubuntu UNIX variants (UNIX, Linux, OSX) Impact/Access: Access Confidential Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-16845 CVE-2018-16844 CVE-2018-16843 Original Bulletin: http://www.ubuntu.com/usn/usn-3812-1 Comment: This advisory references vulnerabilities in products which run on platforms other than Ubuntu. It is recommended that administrators running nginx-common check for an updated version of the software for their operating system. - --------------------------BEGIN INCLUDED TEXT-------------------- ========================================================================== Ubuntu Security Notice USN-3812-1 November 07, 2018 nginx 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 nginx. Software Description: - - nginx: small, powerful, scalable web/proxy server Details: It was discovered that nginx incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to cause excessive memory consumption, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16843) Gal Goldshtein discovered that nginx incorrectly handled the HTTP/2 implementation. A remote attacker could possibly use this issue to cause excessive CPU usage, leading to a denial of service. This issue only affected Ubuntu 16.04 LTS, Ubuntu 18.04 LTS and Ubuntu 18.10. (CVE-2018-16844) It was discovered that nginx incorrectly handled the ngx_http_mp4_module module. A remote attacker could possibly use this issue with a specially crafted mp4 file to cause nginx to crash, stop responding, or access arbitrary memory. (CVE-2018-16845) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 18.10: nginx-common 1.15.5-0ubuntu2.1 nginx-core 1.15.5-0ubuntu2.1 nginx-extras 1.15.5-0ubuntu2.1 nginx-full 1.15.5-0ubuntu2.1 nginx-light 1.15.5-0ubuntu2.1 Ubuntu 18.04 LTS: nginx-common 1.14.0-0ubuntu1.2 nginx-core 1.14.0-0ubuntu1.2 nginx-extras 1.14.0-0ubuntu1.2 nginx-full 1.14.0-0ubuntu1.2 nginx-light 1.14.0-0ubuntu1.2 Ubuntu 16.04 LTS: nginx-common 1.10.3-0ubuntu0.16.04.3 nginx-core 1.10.3-0ubuntu0.16.04.3 nginx-extras 1.10.3-0ubuntu0.16.04.3 nginx-full 1.10.3-0ubuntu0.16.04.3 nginx-light 1.10.3-0ubuntu0.16.04.3 Ubuntu 14.04 LTS: nginx-common 1.4.6-1ubuntu3.9 nginx-core 1.4.6-1ubuntu3.9 nginx-extras 1.4.6-1ubuntu3.9 nginx-full 1.4.6-1ubuntu3.9 nginx-light 1.4.6-1ubuntu3.9 In general, a standard system update will make all the necessary changes. References: https://usn.ubuntu.com/usn/usn-3812-1 CVE-2018-16843, CVE-2018-16844, CVE-2018-16845 Package Information: https://launchpad.net/ubuntu/+source/nginx/1.15.5-0ubuntu2.1 https://launchpad.net/ubuntu/+source/nginx/1.14.0-0ubuntu1.2 https://launchpad.net/ubuntu/+source/nginx/1.10.3-0ubuntu0.16.04.3 https://launchpad.net/ubuntu/+source/nginx/1.4.6-1ubuntu3.9 - --------------------------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 iQIVAwUBW+N6eWaOgq3Tt24GAQjtohAAtUXifHQJgq5pxSFzeQBgxZEwWgRtKYGo 38SIjji4b3k+q3lZHVnQPQ9TvfTGgj0GHzKbRH7K4HXc5m7KD6h3lUPhP2ZuKZ2s yhQoifYmDgLqiBavZGYD5zB8G51lz1u5NvOJZ6h+UIgnGwC6T/0NQ+2s+f/KjQs2 C6r1G/j6h3I3RjNBSG9M84Wy9bpuvPofSWyBno4e3XeaAt8Xn0NYjsr+H/T+6Yyb VlGwIDwmgqtMpwzy5VfhNzDxb6s8SbQG0vEDS+Qsnfa093nXHZFI53NFlSrYthn+ fwefLrsSbQod3/0EEIFabktFkD9w61o+1qCJvTbEUgzZTD5TessxUh/Iy590CYqE P7+MAITNT9Ye3I9dVa3etGEAYp4a5PWkv0PCFX222F8cy6wIz20M91tEWpTwrUdq t3AVFyiK7jh2GZqsB8HSOu39/lsGJUziVtQTIT+KLgySWMXN1GP2mkT1k8lr9EgP OjzdaCB5W+Pah4Xr7J0cegWIV2ug9FgyX+8GBJVwvIdGpBEaB3Cgbn9ytl2//psR oo1Kzzdr7CFKQ0URiJd2HPfr64gZgNFNzzw/jNTPrPqnu33nlYue+/bi6BEeO3MP sk12lKIXujfoNBNfBZahq5MT8PZ1tAp2faiZnB8SIIjYiegHGcKk0ntcQSiOV2r7 MHh/hQ/GHa8= =5pds -----END PGP SIGNATURE-----