Ubuntu Security Notice USN-792-1 – It was discovered that OpenSSL did not limit the number of DTLS records it would buffer when they arrived with a future epoch. A remote attacker could cause a denial of service via memory resource consumption by sending a large number of crafted requests. It was discovered that OpenSSL did not properly free memory when processing DTLS fragments. A remote attacker could cause a denial of service via memory resource consumption by sending a large number of crafted requests. It was discovered that OpenSSL did not properly handle certain server certificates when processing DTLS packets. A remote DTLS server could cause a denial of service by sending a message containing a specially crafted server certificate. It was discovered that OpenSSL did not properly handle a DTLS ChangeCipherSpec packet when it occurred before ClientHello. A remote attacker could cause a denial of service by sending a specially crafted request. It was discovered that OpenSSL did not properly handle out of sequence DTLS handshake messages. A remote attacker could cause a denial of service by sending a specially crafted request.
You can download this advisory from the following link: https://packetstormsecurity.com/files/download/78665/USN-792-1.txt
Source: https://packetstormsecurity.com/files/78665/Ubuntu-Security-Notice-792-1.html