CVE-2023-3494

CVSS Score of 10 (low)

Details

Published Aug 1, 2023
Updated: Aug 31, 2023
CWE ID 120

Summary

CVE-2023-3494 is a vulnerability that affects multiple products, including qRbASm, qRbASn, qRbASk, qRbASl, qRbASj, sG6Yyr, qRbASq, sG6Yyu, sG6Yyv, qRbASr, qRbASo, sG6Yys, sG6Yyt, and qRbASp. The vulnerability is related to the fwctl driver's state machine implementation in bhyve guest accessing certain x86 I/O ports. This bug can lead to buffer overflow when copying a string into a buffer resident in the bhyve process' memory. If exploited by malicious software running in a guest VM with privileges, it can achieve code execution on the host in the bhyve userspace process. However, this risk is mitigated by the capabilities assigned through the Capsicum sandbox available to the bhyve process. The CVSS score for this vulnerability is 8.8 (High severity).

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