Vulnerability record · CVE-2020-16843 · published 4 August 2020
CVE-2020-16843: Amazon firecracker vulnerability
Amazon · Firecracker
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.
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.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected products
1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.
References
| Link | Tags |
|---|---|
| http://www.openwall.com/lists/oss-security/2020/08/13/1 | Mailing ListThird Party Advisory |
| https://github.com/firecracker-microvm/firecracker/issues/2057 | MitigationThird Party Advisory |
| https://www.openwall.com/lists/oss-security/2020/08/13/1 | Mailing ListThird Party Advisory |
| http://www.openwall.com/lists/oss-security/2020/08/13/1 | Mailing ListThird Party Advisory |
| https://github.com/firecracker-microvm/firecracker/issues/2057 | MitigationThird Party Advisory |
| https://www.openwall.com/lists/oss-security/2020/08/13/1 | Mailing ListThird Party Advisory |
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Related vulnerabilities
Same products first, then exploited flaws of the same weakness class.
Source: NIST National Vulnerability Database (record CVE-2020-16843), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.
