Security News
The threat resides in the chips' data memory-dependent prefetcher, a hardware optimization that predicts the memory addresses of data that running code is likely to access in the near future. The breakthrough of the new research is that it exposes a previously overlooked behavior of DMPs in Apple silicon: Sometimes they confuse memory content, such as key material, with the pointer value that is used to load other data.
The newly exposed GoFetch vulnerability affecting Apple's M1, M2 and M3 chips lets an attacker exfiltrate secret keys from cryptographic applications on a targeted system. DMPs - in contrast to classical prefetchers that only store the memory access pattern - "Also take into account the contents of data memory directly to determine what to prefetch," as written in the publication from Boru Chen, Yingchen Wang, Pradyumna Shome, Christopher W. Fletcher, David Kohlbrenner, Riccardo Paccagnella and Daniel Genkin that reveals all of the details about the GoFetch vulnerability.
The GoFetch vulnerability found on Apple M-series and Intel Raptor Lake CPUs has been further unpacked by the researchers who first disclosed it. DMPs are present on all Apple M-series CPUs and Intel's Raptor Lake processors, and the dedicated website for GoFetch now shows how exactly the exploit is carried out.
A new security shortcoming discovered in Apple M-series chips could be exploited to extract secret keys used during cryptographic operations. Dubbed GoFetch, the vulnerability relates to a...
SEMI, an industry association representing 3,000 chip vendors, would really appreciate it if the European Union would back off plans to impose export controls on China, arguing that they should only be used as a "Last resort" to protect national security. Restrictions on the export of chip tech have become a potent instrument in US efforts to stifle China's domestic semiconductor industry.
The National Intelligence Service in South Korea warns that North Korean hackers target domestic semiconductor manufacturers in cyber espionage attacks. In the cases observed by the NIS, the North Korean adversaries used "Living off the land" tactics, which entails abusing legitimate software tools for malicious purposes to evade detection by security products.
A new set of vulnerabilities in 5G modems by Qualcomm and MediaTek, collectively called "5Ghoul," impact 710 5G smartphone models from Google partners and Apple, routers, and USB modems. The researchers discovered the flaws while experimenting with 5G modem firmware analysis and report that the flaws are easy to exploit over-the-air by impersonating a legitimate 5G base station.
Chipmaker Qualcomm has released more information about three high-severity security flaws that it said came under "limited, targeted exploitation" back in October 2023. The vulnerabilities are as...
At AWS re:Invent, NVIDIA contributed GPUs to Amazon's cloud efforts and added a retriever system to its AI Enterprise Software platform on AWS Marketplace. Amazon Web Services announced an AI chatbot for enterprise use, new generations of its AI training chips, expanded partnerships and more during AWS re:Invent, held from November 27 to December 1, in Las Vegas.
Intel on Tuesday issued an out-of-band security update to address a privilege escalation vulnerability in recent server and personal computer chips. The flaw, designated INTEL-SA-00950 and given a CVSS 3.0 score of 8.8 out of 10, affects Intel Sapphire Rapids, Alder Lake, and Raptor Lake chip families.