Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2018.2101 Multiple Denial of Service attacks were identified in Appache HTTP Server 19 July 2018 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: Apache HTTP Server Publisher: The Apache Software Foundation Operating System: UNIX variants (UNIX, Linux, OSX) Windows Impact/Access: Denial of Service -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2018-8011 CVE-2018-1333 Original Bulletin: https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2018-8011 https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2018-1333 Comment: This bulletin contains two (2) The Apache Software Foundation security advisories. - --------------------------BEGIN INCLUDED TEXT-------------------- CVE-2018-8011: mod_md DoS via Coredumps on specially crafted requests Severity: Moderate Vendor: The Apache Software Foundation Versions Affected: httpd 2.4.33 Description: By specially crafting HTTP requests, the mod_md challenge handler would dereference a NULL pointer and cause the child process to segfault. This could be used to DoS the server Mitigation: All httpd users should upgrade to 2.4.34 or later. Credit: The issue was discovered by Daniel Caminada References: https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2018-8011 - ------------------------------------------------------------------------------ CVE-2018-1333: DoS for HTTP/2 connections by crafted requests Severity: Low Vendor: The Apache Software Foundation Versions Affected: httpd 2.4.18-2.4.33 Description: By specially crafting HTTP/2 requests, workers would be allocated 60 seconds longer than necessary, leading to worker exhaustion and a denial of service. Mitigation: All httpd users should upgrade to 2.4.34 or later. Credit: The issue was discovered by Craig Young of Tripwire VERT. References: https://httpd.apache.org/security/vulnerabilities_24.html#CVE-2018-1333 - --------------------------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 iQIVAwUBW1AQiWaOgq3Tt24GAQg69Q//buf1UPHQLExyEa38MDNIWw+2h98U/0Ca UQlvZ+4BNUCCeP9a2Yj0xXbFoNm0BmIDXDaWacNHC4iC3v/dvD26u81OO8HY1v+w z6IHFyGPMjXNgxh0BYwxscorOipVRog9Ins9CaLXOfmZRezixClgf+8+jYykT6A3 eznCZt0BM0mHrVewhrOLlRV9g38dLGUdFscwQR2SKicIpeYKtEnc6Zv8lUmUzz+m PckgJyic3jwihUyq3beecBbDdCeOglRoP4pE+lE/yrFCAOYkizNrA+QTulVQQyl+ DgjKHXVX5nAC1b4zG8iME1mU+pXd7gtpTblMi/p1vUuKYSo/r2Sr8vIAtLYYuW7e 70ObPxbj9Wp4MweiiFicmIxr+pR7XBmUh8Wgb9JCoeDnZMEgn/7oCM05eHzWv6Gf JmXm4L8Hmtu2xfNs+SDE7VyxFJP05OXbdy9bv0EUDNa22ezHU8Ne30BNTjtCIXbQ 6/+vPA10kevOZRWi5igc06SnwTWy9GKDPSkbFheVqiKmdO4U0AEuJ+oT/5ZPnX8J aSZBpbUdxdbTwwDyc0QeFjDd+FzmUyumqI0k1iJ52vB+QjQZPLdimV9pWS7iqjWT 3MvTCa7NESn95PEASQxbGJnQqauqGnY2Jc2GGcHDt92htECToOvdmlkbbD6uA3Bq Wq+NZgks8sE= =eM68 -----END PGP SIGNATURE-----