HIGH✓ PATCH🇵🇱 Wersja polska

CVE-2019-16785

CVSS 7.1v3.1pub. 2019-12-20upd. 2024-11-21

Waitress through version 1.3.1 implemented a "MAY" part of the RFC7230 which states: "Although the line terminator for the start-line and header fields is the sequence CRLF, a recipient MAY recognize a single LF as a line terminator and ignore any preceding CR." Unfortunately if a front-end server does not parse header fields with an LF the same way as it does those with a CRLF it can lead to the front-end and the back-end server parsing the same HTTP message in two different ways. This can lead to a potential for HTTP request smuggling/splitting whereby Waitress may see two requests while the front-end server only sees a single HTTP message. This issue is fixed in Waitress 1.4.0.

CVSS Vector

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N

Agendaless Waitress
APP
Agendaless
≤ 1.3.1
Debian
OS
Debian
9.0
Fedora Project Fedora
OS
Fedoraproject
3031
Oracle Communications Cloud Native Core Network Function Cloud Native Environment
APP
Oracle
1.10.0
Red Hat Openstack
APP
Redhat
15