CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS
Percentile
38.4%
The sflow decode package prior to version 3.4.4 does not employ sufficient packet sanitisation which can lead to a denial of service attack. Attackers can craft malformed packets causing the process to consume huge amounts of memory resulting in a denial of service.
github.com/cloudflare/goflow/v3/decoders/sflow
Version 3.4.4 contains patches fixing this.
A possible workaround is to not have your goflow collector publicly reachable.
If you have any questions or comments about this advisory:
Vendor | Product | Version | CPE |
---|---|---|---|
cloudflare | goflow | * | cpe:2.3:a:cloudflare:goflow:*:*:*:*:*:*:*:* |
github.com/advisories/GHSA-9rpw-2h95-666c
github.com/cloudflare/goflow/commit/2b94619a6204443e3ca1769f4e459f9f57039c51
github.com/cloudflare/goflow/commit/c829ccd2c0aafdc9b886b20bf6f28095607f4998
github.com/cloudflare/goflow/releases/tag/v3.4.4
github.com/cloudflare/goflow/security/advisories/GHSA-9rpw-2h95-666c
nvd.nist.gov/vuln/detail/CVE-2022-2529