CVE-2020-27670

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Summary

CVECVE-2020-27670
StatePUBLIC
Assigner[email protected]
Source PriorityCVE Program / NVD first with legacy fallback
Published2020-10-22 21:15:00 UTC
Updated2023-11-07 03:20:00 UTC
DescriptionAn issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because an AMD IOMMU page-table entry can be half-updated.

Risk And Classification

Problem Types: CWE-345

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Operating System Debian Debian Linux 10.0 All All All
Operating System Fedoraproject Fedora 31 All All All
Operating System Opensuse Leap 15.1 All All All
Operating System Opensuse Leap 15.2 All All All
Operating System Opensuse Leap 15.2 All All All
Operating System Xen Xen All All All All

References

ReferenceSourceLinkTags
Xen: Multiple vulnerabilities (GLSA 202011-06) — Gentoo security GENTOO security.gentoo.org
[SECURITY] Fedora 31 Update: xen-4.12.3-8.fc31 - package-announce - Fedora Mailing-Lists lists.fedoraproject.org
[security-announce] openSUSE-SU-2020:1844-1: important: Security update SUSE lists.opensuse.org
[security-announce] openSUSE-SU-2020:1783-1: important: Security update SUSE lists.opensuse.org Third Party Advisory
XSA-347 - Xen Security Advisories CONFIRM xenbits.xen.org
Debian -- Security Information -- DSA-4804-1 xen DEBIAN www.debian.org
[SECURITY] Fedora 31 Update: xen-4.12.3-8.fc31 - package-announce - Fedora Mailing-Lists FEDORA lists.fedoraproject.org
oss-security - Xen Security Advisory 347 v3 (CVE-2020-27670) - unsafe AMD IOMMU page table updates MLIST www.openwall.com
XSA-347 - Xen Security Advisories MISC xenbits.xen.org Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Legacy QID Mappings

  • 378881 Citrix XenServer Security Updates (CTX284874)
  • 500793 Alpine Linux Security Update for xen
  • 501513 Alpine Linux Security Update for xen
  • 504537 Alpine Linux Security Update for xen
  • 750502 OpenSUSE Security Update for xen (openSUSE-SU-2020:2192-1)
  • 750519 OpenSUSE Security Update for xen (openSUSE-SU-2020:2162-1)
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