Vulnerability Monitor

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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.

Published

2020-08-04T20:15:12.430

Last Modified

2024-11-21T05:07:15.010

Status

Modified

Source

[email protected]

Severity

CVSSv3.1: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:N/I:N/A:P

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: NONE
Integrity Impact: NONE
Availability Impact: PARTIAL

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Primary
NVD-CWE-noinfo

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	amazon	firecracker	0.20.0	Yes
Application	amazon	firecracker	0.21.0	Yes
Application	amazon	firecracker	0.21.1	Yes

References

http://www.openwall.com/lists/oss-security/2020/08/13/1 Mailing List, Third Party Advisory ([email protected])
https://github.com/firecracker-microvm/firecracker/issues/2057 Mitigation, Third Party Advisory ([email protected])
https://www.openwall.com/lists/oss-security/2020/08/13/1 Mailing List, Third Party Advisory ([email protected])
http://www.openwall.com/lists/oss-security/2020/08/13/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://github.com/firecracker-microvm/firecracker/issues/2057 Mitigation, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://www.openwall.com/lists/oss-security/2020/08/13/1 Mailing List, Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)