#zenbleed — Public Fediverse posts

#AMD discloses slew of high severity #security #vulnerabilities for #Zen systems, from the original Zen chips to the latest #Zen4 #CPU, that attacks #BIOS chips, we finally have a #Zenbleed fix. AMD is patching the vulnerabilities through new versions of #AGESA, for #Zen2-based chips, in particular, many of these new AGESAs also patch Zenbleed, including #Epyc #Server chips https://bit.ly/3I1JKds https://www.tomshardware.com/pc-components/cpus/amd-discloses-slew-of-high-severity-security-vulnerabilities-for-zen-chips-that-attack-bios-chips-updates-aim-to-patch-bugs-finally-fix-zenbleed

#AMD discloses slew of high severity #security #vulnerabilities for #Zen systems, from the original Zen chips to the latest #Zen4 #CPU, that attacks #BIOS chips, we finally have a #Zenbleed fix. AMD is patching the vulnerabilities through new versions of #AGESA, for #Zen2-based chips, in particular, many of these new AGESAs also patch Zenbleed, including #Epyc #Server chips https://bit.ly/3I1JKds https://www.tomshardware.com/pc-components/cpus/amd-discloses-slew-of-high-severity-security-vulnerabilities-for-zen-chips-that-attack-bios-chips-updates-aim-to-patch-bugs-finally-fix-zenbleed

#AMD discloses slew of high severity #security #vulnerabilities for #Zen systems, from the original Zen chips to the latest #Zen4 #CPU, that attacks #BIOS chips, we finally have a #Zenbleed fix. AMD is patching the vulnerabilities through new versions of #AGESA, for #Zen2-based chips, in particular, many of these new AGESAs also patch Zenbleed, including #Epyc #Server chips https://bit.ly/3I1JKds https://www.tomshardware.com/pc-components/cpus/amd-discloses-slew-of-high-severity-security-vulnerabilities-for-zen-chips-that-attack-bios-chips-updates-aim-to-patch-bugs-finally-fix-zenbleed

#AMD discloses slew of high severity #security #vulnerabilities for #Zen systems, from the original Zen chips to the latest #Zen4 #CPU, that attacks #BIOS chips, we finally have a #Zenbleed fix. AMD is patching the vulnerabilities through new versions of #AGESA, for #Zen2-based chips, in particular, many of these new AGESAs also patch Zenbleed, including #Epyc #Server chips https://bit.ly/3I1JKds https://www.tomshardware.com/pc-components/cpus/amd-discloses-slew-of-high-severity-security-vulnerabilities-for-zen-chips-that-attack-bios-chips-updates-aim-to-patch-bugs-finally-fix-zenbleed

#AMD discloses slew of high severity #security #vulnerabilities for #Zen systems, from the original Zen chips to the latest #Zen4 #CPU, that attacks #BIOS chips, we finally have a #Zenbleed fix. AMD is patching the vulnerabilities through new versions of #AGESA, for #Zen2-based chips, in particular, many of these new AGESAs also patch Zenbleed, including #Epyc #Server chips https://bit.ly/3I1JKds https://www.tomshardware.com/pc-components/cpus/amd-discloses-slew-of-high-severity-security-vulnerabilities-for-zen-chips-that-attack-bios-chips-updates-aim-to-patch-bugs-finally-fix-zenbleed

This Week in Security: 1Password, Polyglots, and Roundcube

#hackadaycolumns #news #securityhacks #1password #polyglot #roundcube #zenbleed #hackaday

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This Week in Security: 1Password, Polyglots, and Roundcube

#hackadaycolumns #news #securityhacks #1password #polyglot #roundcube #zenbleed #hackaday

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This Week in Security: 1Password, Polyglots, and Roundcube - This week we got news of a security incident at 1Password, and we’re certain we ar... - https://hackaday.com/2023/10/27/this-week-in-security-1password-polyglots-and-roundcube/ #hackadaycolumns #securityhacks #1password #roundcube #polyglot #zenbleed #news

This Week in Security: 1Password, Polyglots, and Roundcube - This week we got news of a security incident at 1Password, and we’re certain we ar... - https://hackaday.com/2023/10/27/this-week-in-security-1password-polyglots-and-roundcube/ #hackadaycolumns #securityhacks #1password #roundcube #polyglot #zenbleed #news

This Week in Security: 1Password, Polyglots, and Roundcube - This week we got news of a security incident at 1Password, and we’re certain we ar... - https://hackaday.com/2023/10/27/this-week-in-security-1password-polyglots-and-roundcube/ #hackadaycolumns #securityhacks #1password #roundcube #polyglot #zenbleed #news

This Week in Security: 1Password, Polyglots, and Roundcube - This week we got news of a security incident at 1Password, and we’re certain we ar... - https://hackaday.com/2023/10/27/this-week-in-security-1password-polyglots-and-roundcube/ #hackadaycolumns #securityhacks #1password #roundcube #polyglot #zenbleed #news

This Week in Security: 1Password, Polyglots, and Roundcube - This week we got news of a security incident at 1Password, and we’re certain we ar... - https://hackaday.com/2023/10/27/this-week-in-security-1password-polyglots-and-roundcube/ #hackadaycolumns #securityhacks #1password #roundcube #polyglot #zenbleed #news

Pretty good video to watch on the #zenbleed vulnerability, feat. Tacos Ormandy:
https://youtu.be/neWc0H1k2Lc

Pretty good video to watch on the #zenbleed vulnerability, feat. Tacos Ormandy:
https://youtu.be/neWc0H1k2Lc

Pretty good video to watch on the #zenbleed vulnerability, feat. Tacos Ormandy:
https://youtu.be/neWc0H1k2Lc

Pretty good video to watch on the #zenbleed vulnerability, feat. Tacos Ormandy:
https://youtu.be/neWc0H1k2Lc

When looking at all the CPU vulnerabilities in the recent years even until this day. We see mitigations taking place in microcode or OS level. But the performance impact is huge! Sometimes 30%-50% decrease in performance on specific tasks like databases!
Question: can we get some compensation as consumer? Since both Intel and AMD sold hardware that doesn't give the promised results.
#specre #meltdown #hertzbleed #Zenbleed #Inception #vulnerability #security #secops #compensation #money

When looking at all the CPU vulnerabilities in the recent years even until this day. We see mitigations taking place in microcode or OS level. But the performance impact is huge! Sometimes 30%-50% decrease in performance on specific tasks like databases!
Question: can we get some compensation as consumer? Since both Intel and AMD sold hardware that doesn't give the promised results.
#specre #meltdown #hertzbleed #Zenbleed #Inception #vulnerability #security #secops #compensation #money

When looking at all the CPU vulnerabilities in the recent years even until this day. We see mitigations taking place in microcode or OS level. But the performance impact is huge! Sometimes 30%-50% decrease in performance on specific tasks like databases!
Question: can we get some compensation as consumer? Since both Intel and AMD sold hardware that doesn't give the promised results.
#specre #meltdown #hertzbleed #Zenbleed #Inception #vulnerability #security #secops #compensation #money

When looking at all the CPU vulnerabilities in the recent years even until this day. We see mitigations taking place in microcode or OS level. But the performance impact is huge! Sometimes 30%-50% decrease in performance on specific tasks like databases!
Question: can we get some compensation as consumer? Since both Intel and AMD sold hardware that doesn't give the promised results.
#specre #meltdown #hertzbleed #Zenbleed #Inception #vulnerability #security #secops #compensation #money

When looking at all the CPU vulnerabilities in the recent years even until this day. We see mitigations taking place in microcode or OS level. But the performance impact is huge! Sometimes 30%-50% decrease in performance on specific tasks like databases!
Question: can we get some compensation as consumer? Since both Intel and AMD sold hardware that doesn't give the promised results.
#specre #meltdown #hertzbleed #Zenbleed #Inception #vulnerability #security #secops #compensation #money

#Linux Kernel Updated To Add #Zenbleed Fix For Valve's #SteamDeck :steamdeck:

https://www.phoronix.com/news/Linux-Zenbleed-Steam-Deck

#Linux Kernel Updated To Add #Zenbleed Fix For Valve's #SteamDeck :steamdeck:

https://www.phoronix.com/news/Linux-Zenbleed-Steam-Deck

#Linux Kernel Updated To Add #Zenbleed Fix For Valve's #SteamDeck :steamdeck:

https://www.phoronix.com/news/Linux-Zenbleed-Steam-Deck

#Linux Kernel Updated To Add #Zenbleed Fix For Valve's #SteamDeck :steamdeck:

https://www.phoronix.com/news/Linux-Zenbleed-Steam-Deck

#Linux Kernel Updated To Add #Zenbleed Fix For Valve's #SteamDeck :steamdeck:

https://www.phoronix.com/news/Linux-Zenbleed-Steam-Deck

Ooopsie!

Linux Kernel Updated To Add Zenbleed Fix For Valve's Steam Deck - Phoronix https://www.phoronix.com/news/Linux-Zenbleed-Steam-Deck

#Linux #Kernel #Zenbleed #Fix #Valve #SteamDeck #AMD #Ryzen #Vulnerability #Hardware #GamingNews #TechNews

Ooopsie!

Linux Kernel Updated To Add Zenbleed Fix For Valve's Steam Deck - Phoronix https://www.phoronix.com/news/Linux-Zenbleed-Steam-Deck

#Linux #Kernel #Zenbleed #Fix #Valve #SteamDeck #AMD #Ryzen #Vulnerability #Hardware #GamingNews #TechNews

Ooopsie!

Linux Kernel Updated To Add Zenbleed Fix For Valve's Steam Deck - Phoronix https://www.phoronix.com/news/Linux-Zenbleed-Steam-Deck

#Linux #Kernel #Zenbleed #Fix #Valve #SteamDeck #AMD #Ryzen #Vulnerability #Hardware #GamingNews #TechNews

Ooopsie!

Linux Kernel Updated To Add Zenbleed Fix For Valve's Steam Deck - Phoronix https://www.phoronix.com/news/Linux-Zenbleed-Steam-Deck

#Linux #Kernel #Zenbleed #Fix #Valve #SteamDeck #AMD #Ryzen #Vulnerability #Hardware #GamingNews #TechNews

Ooopsie!

Linux Kernel Updated To Add Zenbleed Fix For Valve's Steam Deck - Phoronix https://www.phoronix.com/news/Linux-Zenbleed-Steam-Deck

#Linux #Kernel #Zenbleed #Fix #Valve #SteamDeck #AMD #Ryzen #Vulnerability #Hardware #GamingNews #TechNews

I added a known-good microcode check to my #FreeBSD #Zenbleed MSR chicken-bit rc script, and a reminder to check it all again in mid-December.

I don't have the relevant CPUs to hand to test it directly so do let me know how you get on.

https://gist.github.com/Freaky/2560975d3c94246b86f464b8be75c967

I added a known-good microcode check to my #FreeBSD #Zenbleed MSR chicken-bit rc script, and a reminder to check it all again in mid-December.

I don't have the relevant CPUs to hand to test it directly so do let me know how you get on.

https://gist.github.com/Freaky/2560975d3c94246b86f464b8be75c967

I added a known-good microcode check to my #FreeBSD #Zenbleed MSR chicken-bit rc script, and a reminder to check it all again in mid-December.

I don't have the relevant CPUs to hand to test it directly so do let me know how you get on.

https://gist.github.com/Freaky/2560975d3c94246b86f464b8be75c967

I added a known-good microcode check to my #FreeBSD #Zenbleed MSR chicken-bit rc script, and a reminder to check it all again in mid-December.

I don't have the relevant CPUs to hand to test it directly so do let me know how you get on.

https://gist.github.com/Freaky/2560975d3c94246b86f464b8be75c967

I added a known-good microcode check to my #FreeBSD #Zenbleed MSR chicken-bit rc script, and a reminder to check it all again in mid-December.

I don't have the relevant CPUs to hand to test it directly so do let me know how you get on.

https://gist.github.com/Freaky/2560975d3c94246b86f464b8be75c967

@Violet This years #defcon looks ripe with CPU vulnerabilities.

#Zenbleed last week for AMD

today:
#Downfall for Intel

#Inception for AMD

@Violet This years #defcon looks ripe with CPU vulnerabilities.

#Zenbleed last week for AMD

today:
#Downfall for Intel

#Inception for AMD

@Violet This years #defcon looks ripe with CPU vulnerabilities.

#Zenbleed last week for AMD

today:
#Downfall for Intel

#Inception for AMD

@Violet This years #defcon looks ripe with CPU vulnerabilities.

#Zenbleed last week for AMD

today:
#Downfall for Intel

#Inception for AMD

@Violet This years #defcon looks ripe with CPU vulnerabilities.

#Zenbleed last week for AMD

today:
#Downfall for Intel

#Inception for AMD

Maximum oof:

> It took a bit of work, but I found a variant that can leak about 30 kb per core, per second.

There's a nice clear explanation here: https://lock.cmpxchg8b.com/zenbleed.html

#zenbleed

Maximum oof:

> It took a bit of work, but I found a variant that can leak about 30 kb per core, per second.

There's a nice clear explanation here: https://lock.cmpxchg8b.com/zenbleed.html

#zenbleed

Maximum oof:

> It took a bit of work, but I found a variant that can leak about 30 kb per core, per second.

There's a nice clear explanation here: https://lock.cmpxchg8b.com/zenbleed.html

#zenbleed

Maximum oof:

> It took a bit of work, but I found a variant that can leak about 30 kb per core, per second.

There's a nice clear explanation here: https://lock.cmpxchg8b.com/zenbleed.html

#zenbleed

Haven't seen it mentioned much #zenbleed is a new vulnerability found on Zen 2 processors, surrounding speculative execution.

https://lock.cmpxchg8b.com/zenbleed.html

The #AMD #Zenbleed writeup by @taviso is some interesting reading:

https://lock.cmpxchg8b.com/zenbleed.html

The #AMD #Zenbleed writeup by @taviso is some interesting reading:

https://lock.cmpxchg8b.com/zenbleed.html

The #AMD #Zenbleed writeup by @taviso is some interesting reading:

https://lock.cmpxchg8b.com/zenbleed.html

The #AMD #Zenbleed writeup by @taviso is some interesting reading:

https://lock.cmpxchg8b.com/zenbleed.html