VU#905115: Multiple TCP Selective Acknowledgement (SACK) and Maximum Segment Size (MSS) networking vulnerabilities may cause denial-of-service conditions in Linux and FreeBSD kernels

CVE-2019-11477:SACK Panic(Linux>=2.6.29). A sequence of specifically crafted selective acknowledgements(SACK)may trigger an integer overflow,leading to a denial of service or possible kernel failure(panic). CVE-2019-11478:SACK Slowness(Linux