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Oracle Solaris 11: CVE-2019-16785: Vulnerability in Waitress

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Oracle Solaris 11: CVE-2019-16785: Vulnerability in Waitress

Severity
5
CVSS
(AV:N/AC:L/Au:N/C:N/I:P/A:N)
Published
12/20/2019
Created
01/20/2021
Added
01/19/2021
Modified
11/17/2021

Description

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.

Solution(s)

  • oracle-solaris-11-4-upgrade-value-legacy-library-python-waitress-34-1-4-3-11-4-21-0-1-69-0
  • oracle-solaris-11-4-upgrade-value-legacy-library-python-waitress-35-1-4-3-11-4-21-0-1-69-0
  • oracle-solaris-11-4-upgrade-value-library-python-2-waitress-0-8-5-11-4-0-0-1-9-0
  • oracle-solaris-11-4-upgrade-value-library-python-2-waitress-26-0-8-5-11-4-0-0-1-9-0
  • oracle-solaris-11-4-upgrade-value-library-python-2-waitress-27-0-8-5-11-4-0-0-1-9-0
  • oracle-solaris-11-4-upgrade-value-library-python-waitress-1-4-3-11-4-21-0-1-69-0
  • oracle-solaris-11-4-upgrade-value-library-python-waitress-26-0-8-5-11-4-0-0-1-9-0
  • oracle-solaris-11-4-upgrade-value-library-python-waitress-27-1-4-3-11-4-21-0-1-69-0
  • oracle-solaris-11-4-upgrade-value-library-python-waitress-34-1-4-3-11-4-21-0-1-69-0
  • oracle-solaris-11-4-upgrade-value-library-python-waitress-35-1-4-3-11-4-21-0-1-69-0

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