Canonical Releases Linux Kernel Security Patch for Ubuntu 18.10, Update Now

The Linux kernel security update addresses three vulnerabilities discovered by various security researchers in the upstream Linux kernel. These include a race condition (CVE-2019-6133) discovered by Jann Horn in Linux kernel’s fork() system call, which could allow a local attacker to gain access to services caching authorizations. It also fixes an out of bounds write vulnerability (CVE-2018-16880) was discovered by Jason Wang in Linux kernel’s vhost net driver, which could allow an attacker in a guest virtual machine to either execute arbitrary code in the host kernel or cause a denial of service (DoS) crashing the host system.

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