CVEvulnerability
CVE-2020-16843
5.9 MEDIUM
Official page ↗
- Status
- Modified
- Published
- 2020-08-04
- Last modified
- 2026-06-17
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 5.9 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
- CVSS 2.0 ([email protected])
- 4.3 MEDIUM — AV:N/AC:M/Au:N/C:N/I:N/A:P
Description
In Firecracker 0.20.x before 0.20.1 and 0.21.x before 0.21.2, the network stack can freeze under heavy ingress traffic. This can result in a denial of service on the microVM when it is configured with a single network interface, and an availability problem for the microVM network interface on which the issue is triggered.
Affected configurations
• amazon firecracker 0.20.0
• amazon firecracker 0.21.0
• amazon firecracker 0.21.1
References
- http://www.openwall.com/lists/oss-security/2020/08/13/1 Mailing List, Third Party Advisory
- https://github.com/firecracker-microvm/firecracker/issues/2057 Mitigation, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/08/13/1 Mailing List, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2020/08/13/1 Mailing List, Third Party Advisory
- https://github.com/firecracker-microvm/firecracker/issues/2057 Mitigation, Third Party Advisory
- https://www.openwall.com/lists/oss-security/2020/08/13/1 Mailing List, Third Party Advisory