{"id":"GHSA-9rpw-2h95-666c","summary":"Cloudflare GoFlow vulnerable to a Denial of Service in the sflow packet handling package","details":"### Impact\nThe 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.\n\n### Specific Go Packages Affected\ngithub.com/cloudflare/goflow/v3/decoders/sflow\n\n### Patches\nVersion 3.4.4 contains patches fixing this.\n\n### Workarounds\nA possible workaround is to not have your goflow collector publicly reachable.\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in [goflow repo](https://github.com/cloudflare/goflow)\n* Email us [netdev[@]cloudflare.com ](mailto:netdev@cloudflare.com)\n","aliases":["CVE-2022-2529","GO-2022-1032"],"modified":"2026-07-08T06:30:05.372377259Z","published":"2022-10-01T15:52:23Z","database_specific":{"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2022-10-01T15:52:23Z","nvd_published_at":"2022-09-30T11:15:00Z","cwe_ids":["CWE-20","CWE-400"]},"references":[{"type":"WEB","url":"https://github.com/cloudflare/goflow/security/advisories/GHSA-9rpw-2h95-666c"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-2529"},{"type":"WEB","url":"https://github.com/cloudflare/goflow/commit/2b94619a6204443e3ca1769f4e459f9f57039c51"},{"type":"WEB","url":"https://github.com/cloudflare/goflow/commit/c829ccd2c0aafdc9b886b20bf6f28095607f4998"},{"type":"PACKAGE","url":"https://github.com/cloudflare/goflow"},{"type":"WEB","url":"https://github.com/cloudflare/goflow/releases/tag/v3.4.4"}],"affected":[{"package":{"name":"github.com/cloudflare/goflow/v3","ecosystem":"Go","purl":"pkg:golang/github.com/cloudflare/goflow/v3"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"3.4.4"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/10/GHSA-9rpw-2h95-666c/GHSA-9rpw-2h95-666c.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}