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This vulnerability has been modified since it was last analyzed by the NVD. It is awaiting reanalysis which may result in further changes to the information provided.
Description
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.
Metrics
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
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OR
*cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
OR
*cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
*cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXUI4VMD52CH3T7YXAG3J2JW7ZNN3SXF/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/PXUI4VMD52CH3T7YXAG3J2JW7ZNN3SXF/ Mailing List, Third Party Advisory
Changed
Reference Type
https://www.debian.org/security/2021/dsa-5017 No Types Assigned
https://www.debian.org/security/2021/dsa-5017 Third Party Advisory
OR
*cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Added
CPE Configuration
OR
*cpe:2.3:o:xen:xen:*:*:*:*:*:*:*:* versions from (including) 3.2 up to (excluding) 4.12
Changed
Reference Type
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I7ZGWVVRI4XY2XSTBI3XEMWBXPDVX6OT/ No Types Assigned
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/I7ZGWVVRI4XY2XSTBI3XEMWBXPDVX6OT/ Mailing List, Third Party Advisory
Changed
Reference Type
https://xenbits.xenproject.org/xsa/advisory-385.txt No Types Assigned
https://xenbits.xenproject.org/xsa/advisory-385.txt Mitigation, Patch, Third Party Advisory