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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 4.20 | 4.20.8 |
| linux / linux_kernel | 4.17 | 4.19.21 |
| canonical / ubuntu_linux | 18.04 | 18.04.x |
| canonical / ubuntu_linux | 18.10 | 18.10.x |