Vulnerability Description
headerv2.go in mastercactapus proxyprotocol before 0.0.2, as used in the mastercactapus caddy-proxyprotocol plugin through 0.0.2 for Caddy, allows remote attackers to cause a denial of service (webserver panic and daemon crash) via a crafted HAProxy PROXY v2 request with truncated source/destination address data.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Haproxy | Proxyprotocol | < 0.0.2 |
Related Weaknesses (CWE)
References
- https://caddy.community/t/dos-in-http-proxyprotocol-plugin/6014Third Party Advisory
- https://github.com/mastercactapus/caddy-proxyprotocol/issues/8Issue TrackingThird Party Advisory
- https://github.com/mastercactapus/proxyprotocol/commit/5c4a101121fc3e868026189c7PatchThird Party Advisory
- https://github.com/mastercactapus/proxyprotocol/compare/ef496d7...5c4a101Third Party Advisory
- https://github.com/mastercactapus/proxyprotocol/issues/1ExploitThird Party Advisory
- https://github.com/mastercactapus/proxyprotocol/releases/tag/v0.0.2Release NotesThird Party Advisory
- https://caddy.community/t/dos-in-http-proxyprotocol-plugin/6014Third Party Advisory
- https://github.com/mastercactapus/caddy-proxyprotocol/issues/8Issue TrackingThird Party Advisory
- https://github.com/mastercactapus/proxyprotocol/commit/5c4a101121fc3e868026189c7PatchThird Party Advisory
- https://github.com/mastercactapus/proxyprotocol/compare/ef496d7...5c4a101Third Party Advisory
- https://github.com/mastercactapus/proxyprotocol/issues/1ExploitThird Party Advisory
- https://github.com/mastercactapus/proxyprotocol/releases/tag/v0.0.2Release NotesThird Party Advisory
FAQ
What is CVE-2019-14243?
CVE-2019-14243 is a vulnerability with a CVSS score of 7.5 (HIGH). headerv2.go in mastercactapus proxyprotocol before 0.0.2, as used in the mastercactapus caddy-proxyprotocol plugin through 0.0.2 for Caddy, allows remote attackers to cause a denial of service (webser...
How severe is CVE-2019-14243?
CVE-2019-14243 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2019-14243?
Check the references section above for vendor advisories and patch information. Affected products include: Haproxy Proxyprotocol.