Medium severity5.9NVD Advisory· Published Aug 4, 2020· Updated Jun 17, 2026
CVE-2020-16843
CVE-2020-16843
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected products
5- Firecracker/Firecrackerdescription
- Range: 0.20.x before 0.20.1, 0.21.x before 0.21.2
cpe:2.3:a:amazon:firecracker:0.20.0:*:*:*:*:*:*:*+ 2 more
- cpe:2.3:a:amazon:firecracker:0.20.0:*:*:*:*:*:*:*
- cpe:2.3:a:amazon:firecracker:0.21.0:*:*:*:*:*:*:*
- cpe:2.3:a:amazon:firecracker:0.21.1:*:*:*:*:*:*:*
Patches
Vulnerability mechanics
References
3- www.openwall.com/lists/oss-security/2020/08/13/1nvdMailing ListThird Party Advisory
- github.com/firecracker-microvm/firecracker/issues/2057nvdMitigationThird Party Advisory
- www.openwall.com/lists/oss-security/2020/08/13/1nvdMailing ListThird Party Advisory
News mentions
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