Vulnerability · Published Sep 30, 2022 · Assigned by cloudflare
CVE-2022-2529Multiple DoS Attack Vectors in sflow packet handling
High 7.5
In plain English
A high-severity improper input validation in goflow from Cloudflare. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.0% (higher than 62% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)1.0%top 37.9% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
sflow decode package 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 large amounts of memory resulting in a denial of service.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Go | github.com/cloudflare/goflow | no fix listed | GO-2022-1032 |
| Go | github.com/cloudflare/goflow/v3 | 3.4.4 | GHSA-9rpw-2h95-666c |
| Go | github.com/cloudflare/goflow/v3 | 3.4.4 | GO-2022-1032 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Cloudflare | goflow | unspecified – before 3.4.4 |
Weakness: CWE-20, CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H