The dccp_rcv_state_process function in net/dccp/input.c in the Linux kernel through 4.9.11 mishandles DCCP_PKT_REQUEST packet data structures in the LISTEN state, which allows local users to obtain root privileges or cause a denial of service (double free) via an application that makes an IPV6_RECVPKTINFO setsockopt system call.
4.2.0-16.194.2.0-17.214.2.0-19.234.3.0-1.104.3.0-2.114.3.0-5.164.3.0-6.174.3.0-7.184.4.0-10.254.4.0-11.26+32 more4.4.0-64.853.11.0-12.193.12.0-1.33.12.0-2.53.12.0-2.73.12.0-3.83.12.0-3.93.12.0-4.103.12.0-4.123.12.0-5.133.12.0-7.15+96 more3.13.0-110.1574.13.0-16.194.15.0-1001.14.4.0-1001.104.4.0-1003.124.4.0-1004.134.4.0-1002.24.15.0-1023.24~14.04.14.11.0-1009.94.15.0-1002.24.4.0-9019.204.4.0-9020.214.4.0-9021.224.4.0-9022.234.4.0-9023.244.4.0-9025.274.4.0-9026.284.4.0-9027.294.4.0-9028.304.4.0-9029.31Exploitability
AV:LAC:LPR:LUI:NScope
S:UImpact
C:HI:HA:HCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H