September 25, 2024 at 08:40AM RISC-V, an open and free instruction set for customizable silicon chips, is gaining interest in automotive, critical infrastructure, and industrial sectors. However, its susceptibility to backdoors poses security concerns. The Xuantie C910 chip’s vulnerability, Ghostwrite, allows unauthorized access to privileged memory, highlighting the potential risks associated with RISC-V chip designs. … Read more
August 13, 2024 at 10:12AM A team at the CISPA Helmholtz Center for Information Security uncovered the “GhostWrite” vulnerability in T-Head’s XuanTie C910 and C920 RISC-V CPUs, allowing attackers to gain unrestricted access to affected devices. The flaw lies in the vector extension, requiring disabling half the CPU’s functionality for full mitigation, impacting performance especially … Read more
August 7, 2024 at 03:06PM A team from the CISPA Helmholtz Center for Information Security in Germany has revealed a new vulnerability in the XuanTie C910 CPU based on RISC-V architecture. Named GhostWrite, the flaw could allow attackers to gain unrestricted access to targeted devices. Although no specific tools or methods to detect attacks currently … Read more
October 24, 2023 at 05:48PM Researchers from ETH Zurich have developed Cascade, a novel fuzzer designed to find bugs in RISC-V chips. Unlike other fuzzers, Cascade constructs long random programs that manage the control flow during execution, allowing for more thorough testing of the silicon. It was able to find 37 new bugs in six … Read more