VDB
CVE-2020-29570
CVE-2020-29570
PUBLISHED
An issue was discovered in Xen through 4.14.x. Recording of the per-vCPU control block mapping maintained by Xen and that of pointers into the control block is reversed. The consumer assumes, seeing the former initialized, that the latter are also ready for use. Malicious or buggy guest kernels can mount a Denial of Service (DoS) attack affecting the entire system.
EPSS 0.06% · 19.0th percentile
Risk Scores
EPSS Score
0.06%
19.0th 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 | 4.11.3+24-g14b62ab3e5-1ubuntu2.3, 4.11.3+24-g14b62ab3e5-1ubuntu1, 4.11.3+24-g14b62ab3e5-1ubuntu2.2 |
| Ubuntu:18.04:LTS | xen | 4.9.0-0ubuntu4, 0, 4.9.2-0ubuntu1 |
Timeline
- Dec 15, 2020 CVE Published
- Apr 14, 2021 EPSS Score
- Jun 23, 2021 EPSS Score
- Aug 24, 2021 EPSS Score
- Oct 26, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Feb 4, 2022 EPSS Score
- Feb 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 1, 2022 EPSS Score
- Jul 3, 2022 EPSS Score
- Sep 4, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2020-29570 third-party-advisory
- https://xenbits.xen.org/xsa/advisory-358.html third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2020-29570 third-party-advisory