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Debian dla-4188 : python-tornado-doc - security update

high Nessus Plugin ID 237433

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Synopsis

The remote Debian host is missing a security-related update.

Description

The remote Debian 11 host has packages installed that are affected by a vulnerability as referenced in the dla-4188 advisory.

 ------------------------------------------------------------------------- Debian LTS Advisory DLA-4188-1 [email protected] https://www.debian.org/lts/security/ Daniel Leidert May 29, 2025 https://wiki.debian.org/LTS
 -------------------------------------------------------------------------

 Package : python-tornado Version : 6.1.0-1+deb11u2 CVE ID : CVE-2025-47287 Debian Bug : 1105886

 Tornado is a scalable, non-blocking Python web framework and asynchronous networking library.

 CVE-2025-47287

 When Tornado's 'multipart/form-data' parser encounters certain errors, it logs a warning but continues trying to parse the remainder of the data. This allows remote attackers to generate an extremely high volume of logs, constituting a DoS attack. This DoS is compounded by the fact that the logging subsystem is synchronous.

 For Debian 11 bullseye, this problem has been fixed in version 6.1.0-1+deb11u2.

 We recommend that you upgrade your python-tornado packages.

 For the detailed security status of python-tornado please refer to its security tracker page at:
 https://security-tracker.debian.org/tracker/python-tornado

 Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: https://wiki.debian.org/LTS Attachment:
 signature.asc Description: This is a digitally signed message part

Tenable has extracted the preceding description block directly from the Debian security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Upgrade the python-tornado-doc packages.

See Also

http://www.nessus.org/u?dd335af5

https://security-tracker.debian.org/tracker/CVE-2025-47287

https://packages.debian.org/source/bullseye/python-tornado

Plugin Details

Severity: High

ID: 237433

File Name: debian_DLA-4188.nasl

Version: 1.1

Type: local

Agent: unix

Published: 5/29/2025

Updated: 5/29/2025

Supported Sensors: Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2025-47287

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: cpe:/o:debian:debian_linux:11.0, p-cpe:/a:debian:debian_linux:python3-tornado, p-cpe:/a:debian:debian_linux:python-tornado-doc

Required KB Items: Host/local_checks_enabled, Host/Debian/release, Host/Debian/dpkg-l

Exploit Ease: No known exploits are available

Patch Publication Date: 5/29/2025

Vulnerability Publication Date: 5/15/2025

Reference Information

CVE: CVE-2025-47287