CVE-2023-4155
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2023-4155
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2023-4155.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2023-4155
- Downstream
- Related
- Published
- 2023-09-13T17:15:10Z
- Modified
- 2025-08-09T20:01:26Z
- Severity
-
- 5.6 (Medium) CVSS_V3 - CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
- Summary
- [none]
- Details
-
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
VMGEXIThandler 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). - References