CVE-2020-16843 | Vulnetix

CVE-2020-16843 PUBLISHED

Reported by mitre · Published August 4, 2020

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 products

Vendor	Product	Versions
n/a	n/a	n/a
n/a	n/a	*

Timeline

Aug 4, 2020 CVE Published
Apr 14, 2021 EPSS Score (30 in total, the first dated here)
Aug 4, 2024 CVE Updated
Apr 4, 2026 Security Advisory
Sep 3, 2026 Coalition ESS Score

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The same record, from the CLI:

vulnetix vdb vuln CVE-2020-16843
vulnetix vdb fixes CVE-2020-16843

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  "https://api.vdb.vulnetix.com/v2/vuln/CVE-2020-16843/fixes/registry"

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References

x_refsource_MISC
x_refsource_MISC
[oss-security] 20200813 CVE-2020-16843: Firecracker v0.20.0, v0.21.0 and v0.21.1 network stack can freeze under heavy ingress traffic mailing-listx_refsource_MLIST

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