NEWS / Aktualisiertes AMD-Statement zur CPU-Sicherheit
14.01.2018 12:00 Uhr    0 Kommentare

AMD hat sein Statement zur CPU-Sicherheit ergänzt. Zudem hat man das Statement auch um Überlegungen zur GPU-Sicherheit von Radeon-Chips ergänzt. Das englischsprachige Original sieht wie folgt aus:

The public disclosure on January 3rd that multiple research teams had discovered security issues related to how modern microprocessors handle speculative execution has brought to the forefront the constant vigilance needed to protect and secure data. These threats seek to circumvent the microprocessor architecture controls that preserve secure data.

At AMD, security is our top priority and we are continually working to ensure the safety of our users as new risks arise. As a part of that vigilance, I wanted to update the community on our actions to address the situation.

Google Project Zero (GPZ) Variant 1 (Bounds Check Bypass or Spectre) is applicable to AMD processors.

  • We believe this threat can be contained with an operating system (OS) patch and we have been working with OS providers to address this issue.
  • Microsoft is distributing patches for the majority of AMD systems now. We are working closely with them to correct an issue that paused the distribution of patches for some older AMD processors (AMD Opteron, Athlon and AMD Turion X2 Ultra families) earlier this week. We expect this issue to be corrected shortly and Microsoft should resume updates for these older processors by next week. For the latest details, please see Microsoft’s website.
  • Linux vendors are also rolling out patches across AMD products now.

GPZ Variant 2 (Branch Target Injection or Spectre) is applicable to AMD processors.

  • While we believe that AMD’s processor architectures make it difficult to exploit Variant 2, we continue to work closely with the industry on this threat. We have defined additional steps through a combination of processor microcode updates and OS patches that we will make available to AMD customers and partners to further mitigate the threat.
  • AMD will make optional microcode updates available to our customers and partners for Ryzen and EPYC processors starting this week. We expect to make updates available for our previous generation products over the coming weeks. These software updates will be provided by system providers and OS vendors; please check with your supplier for the latest information on the available option for your configuration and requirements.
  • Linux vendors have begun to roll out OS patches for AMD systems, and we are working closely with Microsoft on the timing for distributing their patches. We are also engaging closely with the Linux community on development of “return trampoline” (Retpoline) software mitigations.

GPZ Variant 3 (Rogue Data Cache Load or Meltdown) is not applicable to AMD processors.

  • We believe AMD processors are not susceptible due to our use of privilege level protections within paging architecture and no mitigation is required.

There have also been questions about GPU architectures. AMD Radeon GPU architectures do not use speculative execution and thus are not susceptible to these threats. We will provide further updates as appropriate on this site as AMD and the industry continue our collaborative work to develop mitigation solutions to protect users from these latest security threats.

Quelle: AMD PR – 12.01.2018, Autor: Patrick von Brunn
iStorage datAshur Pro+C mit 512 GB im Test
iStorage datAshur Pro+C mit 512 GB im Test
datAshur Pro+C 512 GB

Der iStorage datAshur Pro+C USB-Stick verfügt über ein PIN-Pad zur Eingabe eines PIN-Codes. Daten werden per AES-XTS 256 Bit verschlüsselt und sind zudem via IP68-Gehäuse auch im Outdoor-Einsatz gut geschützt.

KFA2 GeForce RTX 4080 SUPER SG im Test
KFA2 GeForce RTX 4080 SUPER SG im Test
KFA2 RTX 4080 SUPER SG

Die GeForce RTX 4080 SUPER SG von KFA2 kommt mit 1-Click OC und einer wuchtigen Kühlung im Quad-Slot-Design inkl. RGB-Beleuchtung. Wir haben uns den Boliden im Praxistest ausführlich zur Brust genommen.

ZOTAC RTX 4070 Ti SUPER Trinity Black Test
ZOTAC RTX 4070 Ti SUPER Trinity Black Test
Trinity Black Edition

ZOTAC bietet mit der Trinity Black Edition ein Custom-Design der GeForce RTX 4070 Ti SUPER an, die erst kürzlich von Nvidia vorgestellt wurde. Wie sich die extravagante Grafikkarte im Test schlägt, lesen Sie hier in unserem Review.

Kurzvorstellung: FLIR C5 Wärmebildkamera
Kurzvorstellung: FLIR C5 Wärmebildkamera
FLIR C5 Wärmebildkamera

Mit der C5 von FLIR werfen wir heute einen Blick auf eine mobile Wärmebildkamera. Das Gerät im praktischen Smartphone-Format dient für schnelle thermische Analysen und passt in jede Hosentasche.