01 August 2017
Protect yourself against future threats.
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 =========================================================================== AUSCERT External Security Bulletin Redistribution ESB-2017.1869 Apache HTTP Server vulnerabilities 1 August 2017 =========================================================================== AusCERT Security Bulletin Summary --------------------------------- Product: apache2 Publisher: Ubuntu Operating System: Ubuntu Impact/Access: Access Privileged Data -- Remote/Unauthenticated Denial of Service -- Remote/Unauthenticated Provide Misleading Information -- Remote/Unauthenticated Resolution: Patch/Upgrade CVE Names: CVE-2017-7679 CVE-2017-7668 CVE-2017-3169 CVE-2017-3167 CVE-2016-8743 Reference: ASB-2017.0058 ASB-2017.0021 ASB-2017.0014 ESB-2017.0521 ESB-2017.0347.2 ESB-2017.0127 Original Bulletin: http://www.ubuntu.com/usn/usn-3373-1 - --------------------------BEGIN INCLUDED TEXT-------------------- USN-3373-1: Apache HTTP Server vulnerabilities Ubuntu Security Notice USN-3373-1 31st July, 2017 apache2 vulnerabilities A security issue affects these releases of Ubuntu and its derivatives: Ubuntu 12.04 LTS Summary Several security issues were fixed in Apache HTTP Server. Software description apache2 - Apache HTTP server Details Emmanuel Dreyfus discovered that third-party modules using the ap_get_basic_auth_pw() function outside of the authentication phase may lead to authentication requirements being bypassed. This update adds a new ap_get_basic_auth_components() function for use by third-party modules. (CVE-2017-3167) Vasileios Panopoulos discovered that the Apache mod_ssl module may crash when third-party modules call ap_hook_process_connection() during an HTTP request to an HTTPS port. (CVE-2017-3169) Javier JimÃ©nez discovered that the Apache HTTP Server incorrectly handled parsing certain requests. A remote attacker could possibly use this issue to cause the Apache HTTP Server to crash, resulting in a denial of service. (CVE-2017-7668) ChenQin and Hanno BÃ¶ck discovered that the Apache mod_mime module incorrectly handled certain Content-Type response headers. A remote attacker could possibly use this issue to cause the Apache HTTP Server to crash, resulting in a denial of service. (CVE-2017-7679) David Dennerline and RÃ©gis Leroy discovered that the Apache HTTP Server incorrectly handled unusual whitespace when parsing requests, contrary to specifications. When being used in combination with a proxy or backend server, a remote attacker could possibly use this issue to perform an injection attack and pollute cache. This update may introduce compatibility issues with clients that do not strictly follow HTTP protocol specifications. A new configuration option "HttpProtocolOptions Unsafe" can be used to revert to the previous unsafe behaviour in problematic environments. (CVE-2016-8743) Update instructions The problem can be corrected by updating your system to the following package version: Ubuntu 12.04 LTS: apache2.2-bin 2.2.22-1ubuntu1.12 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 CVE-2016-8743, CVE-2017-3167, CVE-2017-3169, CVE-2017-7668, CVE-2017-7679 - --------------------------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. 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On call after hours for member emergencies only. =========================================================================== -----BEGIN PGP SIGNATURE----- Comment: http://www.auscert.org.au/render.html?it=1967 iQIVAwUBWX/k3ox+lLeg9Ub1AQhX7g//dz+7JfHc0Se6+BuulglJiCRVpEEXYeF4 iewhMWhloAhXPDlbxuFdiioD5zwUmIpnq3OYcRDmPkK8QIIDuGM5OpMcKTYt3Hkt zAoV+HYrCAHsbiV2TXydtOsdlc5/iJxvs7/dNYjIfibXOaPhUhgjrbEnka65x066 TMkUm5uwlPCn5PpMiNju3/JkaFE/fo9jmqYIYRPImZN0Gf02Rs72BLgIlWgwlopN ylR+0051QXj63tQ+RKx3C2IsY5Io/H6UR4siuwb3jh+zf9k3so2dWu28FjU8q58D ecSr3jxX4djc8hX/Km2H2yI29LUz0s/ywgniJgVNUeAJDarB8T7khYgB1nvL66O9 KRnnAvMoOVWiMqw/Vn7dhI/DBA7hgs2VUNihInh7JcG+WF+o8SYRpjX2kAEGJAU3 k7omuY7I8H2qSf8CvP/2EJQ01TgTanQYRM8EMn4uwOaMm7kpxETHC1kCXw/e1kJc 3a5FBoU1lNIF3ig+jjlGhs5sMgu8VfLa6xg8xIRgAckC/sJF+6CoZ3se6C+SSP/W u11EGnPPzgg+w6VO6x3idpUejzK7FoSZlEk+4YLxN6bhSqEpfEGXSXNq34TVeeU0 Vv4cwXULjYgxw1OYDD3ml018cd4ArAaT51RY0Q2ZYMJyEcEgzLTKj4cs4shK0ElC 5DayJIAZ0gk= =ACqG -----END PGP SIGNATURE-----