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#1 2018-01-05 15:31:36
- SirJosh3917
- Formerly ninjasupeatsninja
- From: USA
- Joined: 2015-04-05
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what are your thoughts on meltdown and spectre
so for anybody newish to this basically every CPU since 1995 can be hacked to reveal memory from places that you aren't supposed to be able to access
what are your thoughts on this
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#2 2018-01-05 16:10:31
- Different55
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Re: what are your thoughts on meltdown and spectre
basically every CPU since 1995
Intel CPU's are vulnerable to Meltdown, which isn't fixable in microcode and has to be worked around in software in a way that tanks the performance of syscall-heavy applications.
AMD and ARM are also affected by Spectre, but I think AMD is less affected by Spectre. None of the fixes with Spectre seem to have much of a performance impact.
I think it sucks to own an Intel processor rn.
"Sometimes failing a leap of faith is better than inching forward"
- ShinsukeIto
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#3 2018-01-05 16:13:32
- Gosha
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#4 2018-01-05 17:46:51, last edited by LukeM (2018-01-05 17:47:11)
Re: what are your thoughts on meltdown and spectre
^ Just watched that video and was about to post it here 
And its scary 
Technically the processors arent doing anything wrong, they are just prefetching information that might be needed, so its not just a problem that has a simple fix (without completely disabling a feature that speeds up processor speed significantly)
(just going to stick a big citation needed here 
)
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#5 2018-01-05 18:03:24, last edited by MartenM (2018-01-05 18:04:10)
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#6 2018-01-05 18:25:13
- Processor
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Re: what are your thoughts on meltdown and spectre
HELp
No really, this really scary, especially because it can be executed using JavaScript (sites visiting becomes dangerous).
How could javascript access memory directly? Can you post source?
I have never thought of programming for reputation and honor. What I have in my heart must come out. That is the reason why I code.
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#7 2018-01-05 19:06:38
- hummerz5
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- From: wait I'm not a secret mod huh
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Re: what are your thoughts on meltdown and spectre
I read something about SharedArrayBuffer or something and then new browser timers are too accurate to the point that they endanger cryptographic algorithms.
http://www.tomshardware.com/news/meltdo … 36221.html
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#8 2018-01-05 20:00:26
- Zoey2070
- Moderation Team
- From: Shakuras
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Re: what are your thoughts on meltdown and spectre
finally i can have Extended Unit Deaths in EVERY game
proc's discorb 
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? 
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#9 2018-01-05 20:24:25
- kreacher
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- From: Wakanda
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Re: what are your thoughts on meltdown and spectre
Is this computer hack the same as the one in the book simple genius?
Est. December 2010
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#10 2018-01-07 00:21:58
- capasha
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- Joined: 2015-02-21
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Re: what are your thoughts on meltdown and spectre
A little update, https://www.reddit.com/r/netsec/comment … _meltdown/
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#11 2018-01-07 04:57:32
- HeyNK
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- Joined: 2017-04-07
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Re: what are your thoughts on meltdown and spectre
nice try, i dont update my computer, so i can't be vulnrable.
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#12 2018-01-07 05:33:26
- Guest.
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Re: what are your thoughts on meltdown and spectre
nice try, i dont update my computer, so i can't be vulnrable.
:thinking:
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#13 2018-01-07 14:04:43
Re: what are your thoughts on meltdown and spectre
HeyNK wrote:nice try, i dont update my computer, so i can't be vulnrable.
:thinking:
As long as their computer is from before 1995 or whatever, and he hasnt updated it its fine
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#14 2018-01-07 18:34:11
- kreacher
- Member
- From: Wakanda
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Re: what are your thoughts on meltdown and spectre
Lol srsly I actually have a windows 95 computer can that not be hacked then?
Est. December 2010
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#15 2018-01-07 18:42:31
- Different55
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Re: what are your thoughts on meltdown and spectre
Lol srsly I actually have a windows 95 computer can that not be hacked then?
Not by this exploit, no.
By thousands of other exploits, yeah.
"Sometimes failing a leap of faith is better than inching forward"
- ShinsukeIto
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#16 2018-01-07 19:33:26
- HeyNK
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Re: what are your thoughts on meltdown and spectre
Contraty to popular belief, windows 95 is one of the most secure OS's.
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#17 2018-01-07 20:03:08, last edited by LukeM (2018-01-07 20:03:24)
Re: what are your thoughts on meltdown and spectre
Contraty to popular belief, windows 95 is one of the most secure OS's.
Probably just because nobody uses it anymore so nobody has any reason to bother find the exploits and insecurities
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[ Started around 1739354617.7415 - Generated in 0.079 seconds, 12 queries executed - Memory usage: 1.66 MiB (Peak: 1.86 MiB) ]