{"guid":"9f891f57-4fc3-4804-9f41-cac1ef55b529","title":"X-Factor: Das Unfassbare - Die Geschichte von Meltdown und Spectre","subtitle":null,"slug":"GLT18_-_330_-_de_-_g_ap147_005_-_201804281005_-_x-factor_das_unfassbare_-_die_geschichte_von_meltdown_und_spectre_-_michael_schwarz","link":"https://c3voc.de","description":"Die unglaubliche Geschichte von Meltdown und Spectre, zwei Schwachstellen in modernen CPUs, erzählt vom Team das Meltdown entdeckt hat. \n\nIn diesem Vortrag präsentieren wir die unglaubliche Geschichte von Meltdown und Spectre.\nDie zwei Sicherheitslücken in CPUs erlauben das Lesen von normalerweise unzugänglichen Speicherregionen und werden daher von vielen Experten als die schlimmsten jemals gefundenen Sicherheitslücken betrachtet.\nWir, das Team der TU Graz, präsentieren in diesem Vortrag unsere Entdeckungsgeschichte.\n\nDer Vortrag behandelt Fragen rund um Meltdown und Spectre, die uns immer wieder von vielen Leuten gestellt wurden:\nWie wurde die Schwachstelle entdeckt, was ist dann passiert, was sind die Verbindungen zwischen den verschiedenen Teams, ist das alles eine Verschwörung (Spoiler: nein, ist es nicht)?\nUnsere Antworten auf diese Fragen bringen interessante Zusammenhänge ans Tageslicht, die hoffentlich auch Verschwörungstheorien entkräften.\n\nAuf der technischen Seite des Vortrags geben wir einen Überblick zu Meltdown und Spectre mit Hilfe von Analogien zur realen Welt.\nDieser Überblick ermöglicht es, die technischen Details leicht verständlich zu diskutieren.\nWir erklären den notwendigen Hintergrund für die Attacken, wie Branch Prediction und Cache-Attacken, sowie den konkreten Meltdown- und Spectre-Angriff.\n\nAls Abschluss diskutieren wir Gegenmaßnahmen, die vor diesen Angriffen schützen.\nWir zeigen, dass Meltdown vollständig in Software verhindert werden kann, mit einer Idee, die ebenfalls von unserem Team stammt.\nWir diskutieren auch die aktuellen Ansätze zur Verhinderung von Spectre, und erläutern wie effektiv diese 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