VDB
CVE-2020-27672
CVE-2020-27672
PUBLISHED
CVSS 7 HIGH
An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a host OS denial of service, achieve data corruption, or possibly gain privileges by exploiting a race condition that leads to a use-after-free involving 2MiB and 1GiB superpages.
EPSS 0.26% · 16.4th percentile
Risk Scores
CVSS 3.1
7
CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS Score
0.26%
16.4th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:16.04:LTS | xen | 0, 4.5.1-0ubuntu1, 4.5.1-0ubuntu2 |
| Ubuntu:20.04:LTS | xen | *, 4.9.2-0ubuntu7, 4.11.3+24-g14b62ab3e5-1ubuntu1 |
| Ubuntu:18.04:LTS | xen | 4.9.0-0ubuntu3, 4.9.0-0ubuntu4, 4.9.2-0ubuntu1 |
Timeline
- Oct 22, 2020 CVE 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
- Sep 7, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-27672 third-party-advisory
- https://xenbits.xen.org/xsa/advisory-345.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-27672 third-party-advisory