Daniël Trujillo, Johannes Wikner, and Kaveh Razavi discovered that some AMD processors utilising speculative execution and branch prediction may allow unauthorised memory reads via a speculative side-channel attack. A local attacker could use this to expose sensitive information, including kernel memory.
3.20191218.1ubuntu1.23.20191218.1ubuntu2.23.20191021.1+really3.20180524.1~ubuntu0.16.04.2+esm23.20191021.1+really3.20181128.1~ubuntu0.18.04.1+esm2