Amazon Linux AMI : kernel (ALAS-2017-786)
Medium Nessus Plugin ID 96632
SynopsisThe remote Amazon Linux AMI host is missing a security update.
DescriptionThe sg implementation in the Linux kernel did not properly restrict write operations in situations where the KERNEL_DS option is set, which allows local users to read or write to arbitrary kernel memory locations or cause a denial of service (use-after-free) by leveraging access to a /dev/sg device, related to block/bsg.c and drivers/scsi/sg.c. NOTE: this vulnerability exists because of an incomplete fix for CVE-2016-9576 .
SolutionRun 'yum update kernel' to update your system. You will need to reboot your system in order for the new kernel to be running.