A flaw was found in KVM AMD Secure...... CVE-2023-4155
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AV
AC
AU
C
I
A
发布：
2023-09-13
修订：
2023-11-07
A flaw was found in KVM AMD Secure Encrypted Virtualization (SEV) in the Linux kernel. A KVM guest using SEV-ES or SEV-SNP with multiple vCPUs can trigger a double fetch race condition vulnerability and invoke the `VMGEXIT` handler recursively. If an attacker manages to call the handler multiple times, they can trigger a stack overflow and cause a denial of service or potentially guest-to-host escape in kernel configurations without stack guard pages (`CONFIG_VMAP_STACK`).
漏洞利用/PoC
暂无可用Exp或PoC
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