CVE-2020-29486
Vulnerability from cvelistv5
Published
2020-12-15 18:00
Modified
2024-08-04 16:55
Severity ?
Summary
An issue was discovered in Xen through 4.14.x. Nodes in xenstore have an ownership. In oxenstored, a owner could give a node away. However, node ownership has quota implications. Any guest can run another guest out of quota, or create an unbounded number of nodes owned by dom0, thus running xenstored out of memory A malicious guest administrator can cause a denial of service against a specific guest or against the whole host. All systems using oxenstored are vulnerable. Building and using oxenstored is the default in the upstream Xen distribution, if the Ocaml compiler is available. Systems using C xenstored are not vulnerable.
References
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2C6M6S3CIMEBACH6O7V4H2VDANMO6TVA/
cve@mitre.orghttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/OBLV6L6Q24PPQ2CRFXDX4Q76KU776GKI/
cve@mitre.orghttps://security.gentoo.org/glsa/202107-30Third Party Advisory
cve@mitre.orghttps://www.debian.org/security/2020/dsa-4812Third Party Advisory
cve@mitre.orghttps://xenbits.xenproject.org/xsa/advisory-352.htmlPatch, Vendor Advisory
Impacted products
n/an/a
Show details on NVD website

To clipboard 

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