ASA-201612-5 log original external raw

[ASA-201612-5] linux-grsec: privilege escalation
Arch Linux Security Advisory ASA-201612-5 ========================================= Severity: High Date : 2016-12-06 CVE-ID : CVE-2016-8655 Package : linux-grsec Type : privilege escalation Remote : No Link : Summary ======= The package linux-grsec before version 1:4.8.12.r201612031658-2 is vulnerable to privilege escalation. Resolution ========== Upgrade to 1:4.8.12.r201612031658-2. # pacman -Syu "linux-grsec>=1:4.8.12.r201612031658-2" The problem has been fixed upstream but no release is available yet. Workaround ========== None. Description =========== A race condition issue leading to a use-after-free flaw was found in the way the raw packet sockets implementation in the Linux kernel networking subsystem handled synchronization while creating the TPACKET_V3 ring buffer. A local user able to open a raw packet socket (requires the CAP_NET_RAW capability) could use this flaw to elevate their privileges on the system. Impact ====== A local unprivileged attacker is able to crash the system or run arbitrary code with administrative privileges. References ==========