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.

5.9

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.38%

Third-Party Advisory openwall.com Third-Party Advisory github.com Third-Party Advisory openwall.com

Affected: n/a n/a

References

Link	Tags
https://github.com/firecracker-microvm/firecracker/issues/2057	third party advisory mitigation
https://www.openwall.com/lists/oss-security/2020/08/13/1	third party advisory mailing list
http://www.openwall.com/lists/oss-security/2020/08/13/1	third party advisory mailing list

Frequently Asked Questions

What is the severity of CVE-2020-16843?: CVE-2020-16843 has been scored as a medium severity vulnerability.
How to fix CVE-2020-16843?: To fix CVE-2020-16843, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2020-16843 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2020-16843 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

This platform uses data from the NIST NVD, MITRE CVE, MITRE CWE, First.org and CISA KEV but is not endorsed or certified by these entities. CVE is a registred trademark of the MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. CWE is a registred trademark of the MITRE Corporation and the authoritative source of CWE content is MITRE's CWE web site.