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"Spectre" is very bad news and affects all modern CPUs It's not yet clear whether it affects all modern CPUs, notably I have yet to see any mention of modern P
by binarycrusader 9y ago
"Spectre" is very bad news and affects all modern CPUs
It's not yet clear whether it affects all modern CPUs, notably I have yet to see any mention of modern POWER/MIPS/SPARC-based designs. If someone has pointers, those particular cases would probably be quite interesting.
- pizlonator 9y agoIt affects CPUs that do speculative execution. Pretty sure some powers do.
- binarycrusader 9y agoI wonder to what degree some systems are affected. I believe Solaris already uses separate address spaces on SPARC for user and kernel. I haven’t looked over the SPARC architecture manual to see if they allow speculative execution beyond privilege boundaries.
- olliej 9y agoThat only prevent reading over higher privilege (the meltdown vulnerability) it doesn't protect the arbitrary user land reads from spectre.
- cthalupa 9y agohttps://access.redhat.com/security/vulnerabilities/speculativeexecution https://access.redhat.com/security/vulnerabilities/speculati... Additional exploits for other architectures are also known to exist. These include IBM System Z, POWER8 (Big Endian and Little Endian), and POWER9 (Little Endian).
- deleted 9y ago[deleted]