Linux and FreeBSD Kernel: Multiple TCP-based remote denial of service issues
https://www.openwall.com/lists/oss-security/2019/06/17/5 [www.openwall.com]
2019-06-17 17:45
Netflix has identified several TCP networking vulnerabilities in FreeBSD and Linux kernels. The vulnerabilities specifically relate to the minimum segment size (MSS) and TCP Selective Acknowledgement (SACK) capabilities. The most serious, dubbed “SACK Panic,” allows a remotely-triggered kernel panic on recent Linux kernels.
Also: https://access.redhat.com/security/vulnerabilities/tcpsack