PT-2021-17910
CVE-2021-28706
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تاريخ النشر
2021-11-24
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تاريخ التحديث
2024-02-04
الوصف من
CVSS 3.1
8.6
عاليةالمقاييسAV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H
Name of the Vulnerable Software and Affected Versions:
No specific software or versions are mentioned in the provided descriptions.
Description:
The issue arises when a guest is allowed to have close to 16TiB of memory. It may then issue hypercalls to increase its memory allocation beyond the administrator-established limit due to a calculation done with 32-bit precision, which can overflow. As a result, only the overflowed (and hence small) number gets compared against the established upper bound.
Recommendations:
At the moment, there is no information about a newer version that contains a fix for this vulnerability.
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