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Websocket Client in package Viaduct: DoS from large response message

Moderate
kevin-wangzefeng published GHSA-6wvc-6pww-qr4r Jul 11, 2022

Package

gomod KubeEdge (Go)

Affected versions

<=1.11.0, 1.10.1, 1.9.3

Patched versions

1.11.1, 1.10.2, 1.9.4

Description

Impact

A large response received by the viaduct WSClient can cause a DoS from memory exhaustion. The entire body of the response is being read into memory which could allow an attacker to send a request that returns a response with a large body.
The consequence of the exhaustion is that the process which invokes a WSClient will be in a denial of service. It will be affected If users which are authenticated to the edge side and connect from the edge side to cloudhub through WebSocket protocol.

Patches

This bug has been fixed in Kubeedge 1.11.1, 1.10.2, 1.9.4. Users should update to these versions to resolve the issue.

Workarounds

At the time of writing, no workaround exists.

References

NA

Credits

Thanks David Korczynski and Adam Korczynski of ADA Logics for responsibly disclosing this issue in accordance with the kubeedge security policy during a security audit sponsored by CNCF and facilitated by OSTIF.

For more information

If you have any questions or comments about this advisory:

Severity

Moderate
4.4
/ 10

CVSS base metrics

Attack vector
Network
Attack complexity
High
Privileges required
High
User interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:H

CVE ID

CVE-2022-31080

Weaknesses

No CWEs

Credits