SynopsisThe remote device is missing a vendor-supplied security patch
DescriptionThe remote host is running a version of RancherOS that is prior to v0.8.1, hence is vulnerable a to local privilege-escalation vulnerability. An attacker can exploit this issue to cause a denial-of-service condition.
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.
SolutionUpgrade RancherOS v0.8.1 or later