Canonical Outs New Kernel Security Updates for All Supported Ubuntu Releases

These include the inability of the Linux kernel to correctly initialize a Wake-on-Lan (WoL) data structure (CVE-2014-9900 – also affects Ubuntu 17.04) or to restrict access to /proc/iomem (CVE-2015-8944), both of them allowing a local attacker to expose sensitive information from kernel memory. A use-after-free vulnerability (CVE-2015-8955) discovered in the counters subsystem and performance events of the Linux kernel for ARM64 architectures, which could allow a local attacker to crash the affected system by causing a denial of service, or execute malicious code, was patched as well.