Improper input validation in Haproxy Proxyprotocol
CVE-2019-14243
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.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.043 (90.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 90.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.043 · newest: 0.043 · change: 0.000
Affected products
Weakness classification (CWE)
References
- caddy.community/t/dos-in-http-proxyprotocol-plugin/6014 (Third Party Advisory)
- github.com/mastercactapus/proxyprotocol/issues/1 (Exploit, Third Party Advisory)
- github.com/mastercactapus/caddy-proxyprotocol/issues/8 (Third Party Advisory, Issue Tracking)
- github.com/mastercactapus/proxyprotocol/compare/ef496d7...5c4a101 (Third Party Advisory)
- github.com/mastercactapus/proxyprotocol/commit/5c4a101121fc3e868026189c7a73f7f1… (Patch, Third Party Advisory)
- github.com/mastercactapus/proxyprotocol/releases/tag/v0.0.2 (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2019-14243?
- CVE-2019-14243 is a high-severity vulnerability in Haproxy Proxyprotocol, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2019-07-23.
- How severe is CVE-2019-14243?
- High severity. CVSS v3 base score is 7.5 out of 10.