CVE-2017-1000111

Fixed in a distro release EPSS <1%

Linux kernel: heap out-of-bounds in AF_PACKET sockets. This new issue is analogous to previously disclosed CVE-2016-8655. In both cases, a socket option that changes socket state may race with safety checks in packet_set_ring. Previously with PACKET_VERSION. This time with PACKET_RESERVE. The solution is similar: lock the socket for the update. This issue may be exploitable, we did not investigate further. As this issue affects PF_PACKET sockets, it requires CAP_NET_RAW in the process namespace. But note that with user namespaces enabled, any process can create a namespace in which it has CAP_NET_RAW.

Published 2017-10-04 · CVE record · OSV

Products: linux_kernel, redhat enterprise_linux, redhat enterprise_linux_desktop, redhat enterprise_linux_server, redhat enterprise_linux_server_aus, redhat enterprise_linux_server_eus, redhat enterprise_linux_server_tus, redhat enterprise_linux_workstation, debian_linux

Distro releases