CVE Vulnerability

CVE-2020-16843

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.

4.3 /10

CVSS v2.0 :

V3 Legend

Vector :

Exploitability : 8.6 / Impact : 2.9

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

Scope

5.9 /10

CVSS v3.0 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References
Link Resource
https://github.com/firecracker-microvm/firecracker/issues/2057 Mitigation Third Party Advisory
https://www.openwall.com/lists/oss-security/2020/08/13/1 Mailing List Third Party Advisory
http://www.openwall.com/lists/oss-security/2020/08/13/1 Mailing List Third Party Advisory
Configurations

Configuration 1

cpe:2.3:a:amazon:firecracker:0.21.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.21.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.20.0:*:*:*:*:*:*:*
Information

Published : 2020-08-04 08:15

Updated : 2020-08-19 06:39

NVD link : CVE-2020-16843

Mitre link : CVE-2020-16843

Products Affected
No products.
CWE
NVD-CWE-noinfo