CVE-2020-27671
Summary
| CVE | CVE-2020-27671 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-10-22 21:15:00 UTC |
| Updated | 2023-11-07 03:20:00 UTC |
| Description | An issue was discovered in Xen through 4.14.x allowing x86 HVM and PVH guest OS users to cause a denial of service (data corruption), cause a data leak, or possibly gain privileges because coalescing of per-page IOMMU TLB flushes is mishandled. |
Risk And Classification
Problem Types: NVD-CWE-noinfo
NVD Known Affected Configurations (CPE 2.3)
| Type | Vendor | Product | Version | Update | Edition | Language |
|---|---|---|---|---|---|---|
| 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
| Reference | Source | Link | Tags |
|---|---|---|---|
| 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-346 - Xen Security Advisories | MISC | xenbits.xen.org | Patch, Vendor Advisory |
| 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 346 v3 (CVE-2020-27671) - undue deferral of IOMMU TLB flushes | MLIST | www.openwall.com | |
| XSA-346 - Xen Security Advisories | CONFIRM | xenbits.xen.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
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)