Canonical Releases Linux Kernel Security Patch for 64-Bit PowerPC Ubuntu Systems

Canonical released today a new Linux kernel security update for several of its supported Ubuntu Linux releases to address a security issue affecting 64-Bit PowerPC systems.

Affecting the Ubuntu 19.04 (Disco Dingo), Ubuntu 18.10 (Cosmic Cuttlefish), and Ubuntu 18.04 LTS (Bionic Beaver) operating systems, the new Linux kernel security patch fixes a vulnerability (CVE-2019-12817) on 64-bit PowerPC (ppc64el) systems, which could allow a local attacker to access memory contents or corrupt the memory of other processes.

“It was discovered that the Linux kernel did not properly separate certain memory mappings when creating new userspace processes on 64-bit Power (ppc64el) systems. A local attacker could use this to access memory contents or cause memory corruption of other processes on the system,” reads the security advisory.

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