PYSEC-2022-205

    Dashboard / Vulnerabilities / PYSEC-2022-205

    PYSEC-2022-205

    Published: 31 May 2022Last Modified: 8 Nov 2023

    Summary:

    Details: Waitress is a Web Server Gateway Interface server for Python 2 and 3. Waitress versions 2.1.0 and 2.1.1 may terminate early due to a thread closing a socket while the main thread is about to call select(). This will lead to the main thread raising an exception that is not handled and then causing the entire application to be killed. This issue has been fixed in Waitress 2.1.2 by no longer allowing the WSGI thread to close the socket. Instead, that is always delegated to the main thread. There is no work-around for this issue. However, users using waitress behind a reverse proxy server are less likely to have issues if the reverse proxy always reads the full response.

    References: https://github.com/Pylons/waitress/pull/377, https://github.com/Pylons/waitress/issues/374, https://github.com/Pylons/waitress/security/advisories/GHSA-f5x9-8jwc-25rw, https://github.com/Pylons/waitress/commit/4f6789b035610e0552738cdc4b35ca809a592d48

    Affected packages

    Package

    Name: waitress

    Purl: pkg:pypi/waitress

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -4f6789b035610e0552738cdc4b35ca809a592d48

    Affected versions

    2.1.0
    2.1.1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2022-205 | CVE-DB