In the Linux Kernel before versions 4.20.8 and 4.19.21 a use-after-free error in the "sctp_sendmsg()" function (net/sctp/socket.c) when handling SCTP_SENDALL flag can be exploited to corrupt memory.Referenceshttps://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.19.21https://cdn.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.20.8https://secuniaresearch.flexerasoftware.com/secunia_research/2019-5/https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?id=ba59fb0273076637f0add4311faa990a5eec27c0https://usn.ubuntu.com/3930-1/https://usn.ubuntu.com/3930-2/https://support.f5.com/csp/article/K12671141
