VDB
DEBIAN-CVE-2019-18277
DEBIAN-CVE-2019-18277
PUBLISHED
CVSS 7.5 HIGH
A flaw was found in HAProxy before 2.0.6. In legacy mode, messages featuring a transfer-encoding header missing the "chunked" value were not being correctly rejected. The impact was limited but if combined with the "http-reuse always" setting, it could be used to help construct an HTTP request smuggling attack against a vulnerable component employing a lenient parser that would ignore the content-length header as soon as it saw a transfer-encoding one (even if not entirely valid according to the specification).
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Debian:11 | haproxy | 0, 0, 0 |
| Debian:14 | haproxy | 0, 0, 0 |
| Debian:12 | haproxy | 0, 0, 0 |
| Debian:13 | haproxy | 0, 0, 0 |
Timeline
- Oct 23, 2019 CVE Published
- Apr 28, 2026 CVE Updated