漏洞信息
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Vulnerability Title
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Vulnerability Description
A local attacker who can execute privileged CSR operations (or can induce firmware to do so) performs carefully crafted reads/writes to menvcfg (e.g., csrrs in M-mode). On affected XiangShan versions (commit aecf601e803bfd2371667a3fb60bfcd83c333027, 2024-11-19), these menvcfg accesses can unexpectedly set WPRI (reserved) bits in the status view (xstatus) to 1. RISC-V defines WPRI fields as "writes preserve values, reads ignore values," i.e., they must not be modified by software manipulating other fields, and menvcfg itself contains multiple WPRI fields.
CVSS Information
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Vulnerability Type
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Vulnerability Title
XiangShan 安全漏洞
Vulnerability Description
XiangShan是中国XiangShan开源的一个开源高性能RISC-V处理器项目。 XiangShan存在安全漏洞，该漏洞源于对menvcfg的特制读写操作可能意外设置WPRI位，可能导致状态视图不一致。
CVSS Information
N/A
Vulnerability Type
N/A