Trusted Execution Environments (TEEs) have been widely used in many security-critical
applications. The popularity of TEEs derives from its high security and trustworthiness …

Side-channel attacks have become a severe threat to the confidentiality of computer
applications and systems. One popular type of such attacks is the microarchitectural attack …

Meltdown: reading kernel memory from user space Page 1 46 COMMUNICATIONS OF THE
ACM | JUNE 2020 | VOL. 63 | NO. 6 contributed articles IMA GE B Y ANDRIJ BOR YS A …

The security of computer systems fundamentally relies on memory isolation, eg, kernel
address ranges are marked as non-accessible and are protected from user access. In this …

Speculative execution side-channel vulnerabilities in micro-architecture processors have
raised concerns about the security of Intel SGX. To understand clearly the security impact of …

Meltdown and Spectre enable arbitrary data leakage from memory via various side
channels. Short-term software mitigations for Meltdown are only a temporary solution with a …

In modern computer systems, user processes are isolated from each other by the operating
system and the hardware. Additionally, in a cloud scenario it is crucial that the hypervisor …

We present an effective implementation of the Prime+ Probe side-channel attack against the
last-level cache. We measure the capacity of the covert channel the attack creates and …

Side-channel risks of Intel SGX have recently attracted great attention. Under the spotlight is
the newly discovered page-fault attack, in which an OS-level adversary induces page faults …

The presence of large numbers of security vulnerabilities in popular feature-rich commodity
operating systems has inspired a long line of work on excluding these operating systems …