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
Kingston XS1000 Portable SSD 2 TB im Test
Kingston XS1000 Portable SSD 2 TB im Test
Kingston XS1000 Portable SSD

Erst kürzlich haben wir die XS2000 Portable SSD von Hersteller Kingston getestet. Mit der neuen XS1000 Portable SSD kommt nun die kleine Schwester, die dennoch einiges an Leistung zu bieten hat.

4 x 13th Gen Intel Core i3, i5 und i9 im Test
4 x 13th Gen Intel Core i3, i5 und i9 im Test
Core i9-13900KS Special Edition

Wir haben uns vier weitere Modelle der 13000er-Familie von Intel zur Brust genommen: Core i3-13100F, Core i5-13400F, Core i5-13500 und das Flaggschiff Core i9-13900KS Special Edition. Mehr dazu im Test.

3 x Mesh WLAN-Repeater im Praxistest
3 x Mesh WLAN-Repeater im Praxistest
ASUS, AVM und devolo

Im heutigen Test haben wir uns drei Access Points von ASUS, AVM und devolo angesehen. Die drei Kontrahenten spielen im WiFi 6 Bereich und unterschiedlichen Preiskategorien. Mehr dazu im Praxistest.

WD_BLACK P40 Game Drive 1 TB im Test
WD_BLACK P40 Game Drive 1 TB im Test

Die WD_BLACK P40 Game Drive SSD wurde unter anderem für die Verwendung an PlayStation oder Xbox entwickelt und kommt mit 2 GB/s und RGB-Beleuchtung. Wir haben das 1-TB-Modell getestet.