cve-2021-27379
Vulnerability from cvelistv5
Published
2021-02-18 15:05
Modified
2024-08-03 20:48
Severity ?
Summary
An issue was discovered in Xen through 4.11.x, allowing x86 Intel HVM guest OS users to achieve unintended read/write DMA access, and possibly cause a denial of service (host OS crash) or gain privileges. This occurs because a backport missed a flush, and thus IOMMU updates were not always correct. NOTE: this issue exists because of an incomplete fix for CVE-2020-15565.
References
cve@mitre.orghttp://www.openwall.com/lists/oss-security/2021/02/23/1Mailing List, Third Party Advisory
cve@mitre.orghttp://xenbits.xen.org/xsa/advisory-366.htmlMitigation, Patch, Vendor Advisory
cve@mitre.orghttps://www.debian.org/security/2021/dsa-4888Third Party Advisory
cve@mitre.orghttps://xenbits.xen.org/xsa/advisory-366.htmlPatch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2021/02/23/1Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108http://xenbits.xen.org/xsa/advisory-366.htmlMitigation, Patch, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108https://www.debian.org/security/2021/dsa-4888Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108https://xenbits.xen.org/xsa/advisory-366.htmlPatch, Vendor Advisory
Impacted products
Vendor Product Version
Show details on NVD website

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