Reptar(lock.cmpxchg8b.com)
557 points by abhi9u | 168 comments
Tavis Ormandy's write-up of Reptar, an Intel CPU bug where redundant instruction prefixes put processors into a glitch state, covering its discovery and fix.
#cpu-vulnerability on Hacker News
3 stories tagged cpu-vulnerability, newest first.
Downfall Attacks(downfall.page)
1207 points by WalterSobchak | 306 comments
Website describing Downfall, a CPU vulnerability affecting billions of modern processors, with attack details, demo, FAQ, and vendor advisories.
Zenbleed(lock.cmpxchg8b.com)
1160 points by loeg | 327 comments
Tavis Ormandy's writeup of Zenbleed, an AMD Zen 2 CPU vulnerability that leaks data from vector registers, covering exploitation, discovery, and mitigation.