Vulnerability Details CVE-2021-28700
xen/arm: No memory limit for dom0less domUs The dom0less feature allows an administrator to create multiple unprivileged domains directly from Xen. Unfortunately, the memory limit from them is not set. This allow a domain to allocate memory beyond what an administrator originally configured.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.021
EPSS Ranking 83.5%
CVSS Severity
CVSS v3 Score 4.9
CVSS v2 Score 6.8
References
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/
- https://security.gentoo.org/glsa/202208-23
- https://www.debian.org/security/2021/dsa-4977
- https://xenbits.xenproject.org/xsa/advisory-383.txt
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2VQCFAPBNGBBAOMJZG6QBREOG5IIDZID/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FZCNPSRPGFCQRYE2BI4D4Q4SCE56ANV2/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LPRVHW4J4ZCPPOHZEWP5MOJT7XDGFFPJ/
- https://security.gentoo.org/glsa/202208-23
- https://www.debian.org/security/2021/dsa-4977
- https://xenbits.xenproject.org/xsa/advisory-383.txt
Products affected by CVE-2021-28700
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cpe:2.3:o:debian:debian_linux:11.0
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cpe:2.3:o:fedoraproject:fedora:33
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cpe:2.3:o:fedoraproject:fedora:34
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cpe:2.3:o:fedoraproject:fedora:35
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cpe:2.3:o:xen:xen:14.4
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cpe:2.3:o:xen:xen:4.12.0
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cpe:2.3:o:xen:xen:4.12.1
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cpe:2.3:o:xen:xen:4.13.0
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cpe:2.3:o:xen:xen:4.13.1
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cpe:2.3:o:xen:xen:4.13.2
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cpe:2.3:o:xen:xen:4.13.3
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cpe:2.3:o:xen:xen:4.14.0
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cpe:2.3:o:xen:xen:4.14.1
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cpe:2.3:o:xen:xen:4.16
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cpe:2.3:o:xen:xen:4.16.0