CVE-2020-16843 Information

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 Vector

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

http://www.openwall.com/lists/oss-security/2020/08/13/1 https://github.com/firecracker-microvm/firecracker/issues/2057 https://www.openwall.com/lists/oss-security/2020/08/13/1

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.9