3 ms·
The article has little useful data - this looks like it's the original paper: https://mp.weixin.qq.com/s/ke8tBpJ7NpvUEAecov--UQ https://mp.weixin.qq.com/s/ke8t
by Taniwha 2y ago
The article has little useful data - this looks like it's the original paper:
https://mp.weixin.qq.com/s/ke8tBpJ7NpvUEAecov--UQ https://mp.weixin.qq.com/s/ke8tBpJ7NpvUEAecov--UQ
- Taniwha 2y agoThis describes a timing attack like Spectre/Meltdown on a particular O/S architecture, not all RISC-V cores - looks like there are timing issues with allocation of write port slots when writing to the register file - because division takes so long it's possible to use a late write from division to tell whether a particular speculative branch has been taken or not
- snvzz 2y agoThere's a CVE table in that article and they seem to have CVEs from a microarchitecture implementing openRISC (entirely different ISA) mixed in there somehow.