MGASA-2022-0182

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2022-24761
Published: 15 May 2022, 10:06
Last modified:16 Apr 2026, 04:23

Vulnerability Summary

Overall Risk (default)
minimal
0/100
CVSS Score
No data
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

15 May 2022, 10:06
Published
Vulnerability first disclosed
16 Apr 2026, 04:23
Last Modified
Vulnerability information updated

Description

Updated python-waitress packages fix security vulnerability When using Waitress versions 2.1.0 and prior behind a proxy that does not properly validate the incoming HTTP request matches the RFC7230 standard, Waitress and the frontend proxy may disagree on where one request starts and where it ends. This would allow requests to be smuggled via the front-end proxy to waitress and later behavior. There are two classes of vulnerability that may lead to request smuggling that are addressed by this advisory: The use of Python’s `int()` to parse strings into integers, leading to `+10` to be parsed as `10`, or `0x01` to be parsed as `1`, where as the standard specifies that the string should contain only digits or hex digits; and Waitress does not support chunk extensions, however it was discarding them without validating that they did not contain illegal characters. This vulnerability has been patched in Waitress 2.1.1

Affected Systems

  • mageia•python-waitress

    < 2.1.1-1.mga8

References (3)