CVE-2021-4093
- State
- Published
- Severity
- Not scored
- Published
- Feb 18, 2022
- Updated
- Aug 3, 2024
- Reserved
- Dec 10, 2021
Description
A flaw was found in the KVM's AMD code for supporting the Secure Encrypted Virtualization-Encrypted State (SEV-ES). A KVM guest using SEV-ES can trigger out-of-bounds reads and writes in the host kernel via a malicious VMGEXIT for a string I/O instruction (for example, outs or ins) using the exit reason SVM_EXIT_IOIO. This issue results in a crash of the entire system or a potential guest-to-host escape scenario.
Scores
The record has no CVSS score.
Weaknesses
- CWE-125 (CWE-125|CWE-787)
Affected Products
| Product | Versions |
|---|---|
kerneln/a |
|
References
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