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GitHub_MCVE-2022-31015

HistoryMay 31, 2022 - 11:15 p.m.

CVE-2022-31015

2022-05-3123:15:07

CWE-248

CWE-362

GitHub_M

web.nvd.nist.gov

waitress

web server

gateway interface

python

cve-2022-31015

security issue

socket

thread

nvd

CVSS2

4.3

Attack Vector

NETWORK

Attack Complexity

MEDIUM

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS3

6.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

AI Score

5.5

Confidence

High

EPSS

0.002

Percentile

56.7%

JSON

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.

Affected configurations

Nvd

Vulners

Node

agendalesswaitressRange2.1.0–2.1.2

VendorProductVersionCPE
agendalesswaitress*cpe:2.3:a:agendaless:waitress:*:*:*:*:*:*:*:*

Vendor	Product	Version	CPE
agendaless	waitress	*	cpe:2.3:a:agendaless:waitress::::::::

CNA Affected

[
  {
    "product": "waitress",
    "vendor": "Pylons",
    "versions": [
      {
        "status": "affected",
        "version": ">= 2.1.0, < 2.1.2"
      }
    ]
  }
]