CVE-2021-28706

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Source
https://nvd.nist.gov/vuln/detail/CVE-2021-28706
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2021-28706.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2021-28706
Downstream
Related
Published
2021-11-24T01:15:08Z
Modified
2025-09-25T05:01:18Z
Severity
  • 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

guests may exceed their designated memory limit When a guest is permitted to have close to 16TiB of memory, it may be able to issue hypercalls to increase its memory allocation beyond the administrator established limit. This is a result of a calculation done with 32-bit precision, which may overflow. It would then only be the overflowed (and hence small) number which gets compared against the established upper bound.

References

Affected packages