20.500.12556/RUL-120154 Ranljivost modernih procesorjev na napada Meltdown in Spectre Vulnerability of modern processors to Meltdown and Spectre attacks Cilj diplomske naloge je raziskati in opisati ranljivosti modernih procesorjev na napada Meltdown in Spectre. Najprej je opisano delovanje modernih procesorjev in arhitekturne rešitve CPE, ki jih napada izkoriščata. Opisana je cevovodna zgradba superskalarnih procesorjev, napovedovanje skokov, špekulativno izvajanje ukazov in pomnilniška hierarhija. Nato sledi opis vsakega napada, kako deluje in kakšne so rešitve zanj. Opis napadov je zapisan z razlago na konkretnem primeru za lažje razumevanje. Na koncu sledijo ugotovitve o razširjenosti napadov na procesorjih ARM in potem tudi analiza konkretnega števila ranljivih procesorjev. The thesis aims to explore and describe the vulnerabilities of modern processors to Meltdown and Spectre attacks. First, the operation of modern processors and the CPU architectural slutions exploited by the attacks is described. The pipeline structure of superscalar processors, branch prediction, speculative execution of instructions, and memory hierarchy are described. This is followed by a description of each attack, how it works and what are the solutions for it. The description of the attacks is written with an explanation on concrete cases for easier understanding. Finally, findings on the prevalence of attacks on ARM processors follow, followed by an analysis of the specific number of vulnerable processors. procesor Meltdown Spectre processor Meltdown Spectre true false false Slovenski jezik Angleški jezik Diplomsko delo/naloga 2020-09-16 11:30:00 2020-09-16 11:30:02 2024-02-16 06:59:08 0000-00-00 00:00:00 2020 0 0 0000-00-00 NiDoloceno NiDoloceno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 25882 31958275 Polanc_Marcel_-_Ranljivost_modernih_procesorjev_na_napada_Meltdown_in_Spectre.pdf Polanc_Marcel_-_Ranljivost_modernih_procesorjev_na_napada_Meltdown_in_Spectre.pdf 1 B6500A68DE43C088BD7037CDB8F6162B e6b4ffe85262a0d05e8f627f371ffc2ca4670d419fa291542f7bfe5cc5f8e87a 031726e0-a1ba-11eb-a523-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=134925 Fakulteta za računalništvo in informatiko 0 0 0