CVE-2017-15698 – tomcat-native: Mishandling of client certificates can allow for OCSP check bypass

https://notcve.org/view.php?id=CVE-2017-15698

When parsing the AIA-Extension field of a client certificate, Apache Tomcat Native Connector 1.2.0 to 1.2.14 and 1.1.23 to 1.1.34 did not correctly handle fields longer than 127 bytes. The result of the parsing error was to skip the OCSP check. It was therefore possible for client certificates that should have been rejected (if the OCSP check had been made) to be accepted. Users not using OCSP checks are not affected by this vulnerability. Al analizar el campo AIA-Extension de un certificado de cliente, Apache Tomcat Native Connector en versiones 1.2.0 a 1.2.14 y 1.1.23 a 1.1.34 no gestionó correctamente los campos superiores a los 127 bytes. • http://www.securitytracker.com/id/1040390 https://access.redhat.com/errata/RHSA-2018:0465 https://access.redhat.com/errata/RHSA-2018:0466 https://lists.apache.org/thread.html/6eb0a53e5827d97db1a05c736d01101fec21202a5b8fc77bb0eaaed8%40%3Cannounce.tomcat.apache.org%3E https://lists.apache.org/thread.html/ba661b0edd913b39ff129a32d855620dd861883ade05fd88a8ce517d%40%3Cdev.tomcat.apache.org%3E https://lists.apache.org/thread.html/f8e0814e11c7f21f42224b6de111cb3f5e5ab5c15b78924c516d4ec2%40%3Cdev.tomcat.apache.org%3E https://lists.apache.org/thread.html&# • CWE-295: Improper Certificate Validation CWE-299: Improper Check for Certificate Revocation •