Mageia: 2019-0195 Critical: Kernel Denial of Service Vulnerabilities

This kernel update is based on the upstream 4.14.127 and fixes atleast the following security issues:
Jonathan Looney discovered that it is possible to send a crafted sequence of SACKs which will fragment the RACK send map. An attacker may be able to further exploit the fragmented send map to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection (CVE-2019-5599).
Jonathan Looney discovered that the TCP_SKB_CB(skb)->tcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service (CVE-2019-11477).
Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service (CVE-2019-11478).
Jonathan Looney discovered that the Linux kernel d...