The tls_decrypt_ticket function in ssl/t1_lib.c in OpenSSL before 1.1.0 does not consider the HMAC size during validation of the ticket length, which allows remote attackers to cause a denial of service via a ticket that is too short.Referenceshttps://www.tenable.com/security/tns-2016-20https://access.redhat.com/errata/RHSA-2018:2185https://access.redhat.com/errata/RHSA-2018:2186http://www.splunk.com/view/SP-CAAAPUEhttp://www.oracle.com/technetwork/security-advisory/cpujan2018-3236628.htmlhttp://rhn.redhat.com/errata/RHSA-2016-1940.htmlhttp://www.oracle.com/technetwork/topics/security/linuxbulletinoct2016-3090545.htmlhttp://www.securityfocus.com/bid/92628https://kb.pulsesecure.net/articles/Pulse_Security_Advisories/SA40312https://git.openssl.org/?p=openssl.git%3Ba=commit%3Bh=e97763c92c655dcf4af2860b3abd2bc4c8a267f9http://www.splunk.com/view/SP-CAAAPSVhttp://www-01.ibm.com/support/docview.wss?uid=swg21995039http://www.securitytracker.com/id/1036885http://www.oracle.com/technetwork/security-advisory/cpuoct2016-2881722.htmlhttps://www.tenable.com/security/tns-2016-16https://www.tenable.com/security/tns-2016-21http://www.oracle.com/technetwork/security-advisory/cpuoct2017-3236626.htmlhttp://www.oracle.com/technetwork/security-advisory/cpuapr2018-3678067.htmlhttp://www.oracle.com/technetwork/topics/security/bulletinoct2016-3090566.htmlhttp://www.oracle.com/technetwork/topics/security/ovmbulletinoct2016-3090547.htmlhttps://bto.bluecoat.com/security-advisory/sa132http://www.oracle.com/technetwork/security-advisory/cpujul2017-3236622.htmlhttps://security.FreeBSD.org/advisories/FreeBSD-SA-16:26.openssl.aschttps://access.redhat.com/errata/RHSA-2018:2187http://kb.juniper.net/InfoCenter/index?page=content&id=JSA10759https://cert-portal.siemens.com/productcert/pdf/ssa-412672.pdf
