USN-7547-1: Tornado vulnerability

Published Jun 2, 2025
·
Updated

It was discovered that Tornado inefficiently handled requests when parsing certain form data. An attacker could possibly use this issue to increase resource utilization leading to a denial of service. This issue was only addressed in Ubuntu 24.04 LTS and Ubuntu 22.04 LTS. (CVE-2025-47287)

Affected Software

8 affected componentsFixes available
All of the following
ubuntu/python3-tornado<6.4.2-1ubuntu0.25.04.1
6.4.2-1ubuntu0.25.04.1
Ubuntu Ubuntu=25.04
All of the following
ubuntu/python3-tornado<6.4.1-2ubuntu0.2
6.4.1-2ubuntu0.2
Ubuntu Ubuntu=24.10
All of the following
ubuntu/python3-tornado<6.4.0-1ubuntu0.2
6.4.0-1ubuntu0.2
Ubuntu Ubuntu=24.04
All of the following
ubuntu/python3-tornado<Ubuntu Pro
Ubuntu Pro
Ubuntu Ubuntu=22.04

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade ubuntu/python3-tornado to a version that resolves this vulnerability.

    Fixed in 6.4.2-1ubuntu0.25.04.1
  2. Upgrade

    Upgrade ubuntu/python3-tornado to a version that resolves this vulnerability.

    Fixed in 6.4.1-2ubuntu0.2
  3. Upgrade

    Upgrade ubuntu/python3-tornado to a version that resolves this vulnerability.

    Fixed in 6.4.0-1ubuntu0.2
  4. Upgrade

    Upgrade ubuntu/python3-tornado to a version that resolves this vulnerability.

    Fixed in Ubuntu Pro

Event History

Jun 2, 2025
Advisory Published
via Ubuntu·12:00 AM
Data Sourced
via Ubuntu·12:00 AM
DescriptionAffected Software

Child vulnerabilities

Contains the following vulnerabilities.

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