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.
NOTE: The following CVSS v3.0 metrics and score provided are preliminary and subject to review.
|Base Score:||8.6||Base Metrics:||AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H|
|Access Vector:||Network||Attack Complexity:||Low|
|Privileges Required:||None||User Interaction:||None|
|Integrity Impact:||None||Availability Impact:||High|
|Oracle VM version 3 (xen)||OVMSA-2022-0003||2022-01-06|
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