VDB
CVE-2020-27671
CVE-2020-27671
PUBLISHED
CVSS 7.800000190734863 HIGH
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.
EPSS 0.34% · 25.1th percentile
Risk Scores
CVSS 3.1
7.800000190734863
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H
EPSS Score
0.34%
25.1th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | xen | 0, 4.5.1-0ubuntu1, 4.5.1-0ubuntu2 |
| Ubuntu:18.04:LTS | xen | 0, 4.9.2-0ubuntu1, 4.9.0-0ubuntu4 |
| Ubuntu:20.04:LTS | xen | 4.9.2-0ubuntu2, 4.9.2-0ubuntu6, 4.9.2-0ubuntu7 |
Timeline
- Oct 22, 2020 CVE Published
- Nov 24, 2020 PoC Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 25, 2021 EPSS Score
- Oct 27, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Mar 2, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 4, 2022 EPSS Score
- Jul 6, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-27671 third-party-advisory
- https://xenbits.xen.org/xsa/advisory-346.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-27671 third-party-advisory