Allocation of Resources Without Limits or Throttling in Tornado - CVE-2025-47287

Vulnerability identifier: #VU109846

CSH Severity: Medium

CVSS v4: 6.9 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]

CVE-ID: CVE-2025-47287

CWE-ID: CWE-770

Exploitation vector: Remote access

Exploit availability: No public exploit available

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to excessive logging in the multipart/form-data parser. A remote attacker can force the application to generate an extremely high volume of logs and perform a denial of service (DoS) attack.

Tornado
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server 15 SP5
Debian Linux
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server for SAP Applications 12
SUSE Linux Enterprise Server 12
SUSE Linux Enterprise Desktop 12
SUSE Linux Enterprise High Performance Computing 12
SUSE Linux Enterprise Server for SAP Applications 15
SUSE Linux Enterprise High Performance Computing 15
SUSE Linux Enterprise High Performance Computing LTSS 15
SUSE Linux Enterprise Server 15
SUSE Linux Enterprise High Performance Computing ESPOS 15
SUSE Linux Enterprise Desktop 15
SUSE Linux Enterprise Real Time 15
SUSE Manager Proxy
SUSE Manager Retail Branch Server
SUSE Manager Server
SUSE Linux Enterprise Micro
SUSE Linux Enterprise Micro for Rancher
Anolis OS
SUSE Enterprise Storage
Red Hat Enterprise Linux for x86_64
Red Hat Enterprise Linux for ARM 64
Red Hat Enterprise Linux for Power, little endian
Red Hat Enterprise Linux for IBM z Systems
Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Enterprise Linux Server - AUS
Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Enterprise Linux for ARM 64 - Extended Update Support
SUSE Multi-Linux Manager Client Tools for Debian
SUSE Manager Client Tools for SLE
SUSE Linux Enterprise Server for the Raspberry Pi
SUSE Linux Enterprise Server
SUSE Linux Enterprise Server for SAP Applications
SUSE Linux Enterprise Desktop
Python 3 Module
Basesystem Module
openSUSE Leap
openEuler
Ubuntu
SUSE Multi-Linux Manager Client Tools for Ubuntu 22.04
SUSE Multi-Linux Manager Client Tools for Ubuntu 24.04
watsonx.data
Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
pcs
pcs-snmp
pcs (Red Hat package)
python-tornado
python-tornado-doc
python-tornado (Red Hat package)
python-tornado-debuginfo
python-tornado-debugsource
python3-tornado
python3-tornado-debuginfo
python2-tornado
spacecmd
mgrctl
mgrctl-fish-completion
mgrctl-zsh-completion
mgrctl-bash-completion
python-tornado (Ubuntu package)
python-tornado-help
python-tornado (Debian package)
python311-tornado6-debuginfo
python311-tornado6
python-tornado6-debugsource
python3-tornado-doc
venv-salt-minion
python3-salt-testsuite
salt-minion
salt
salt-standalone-formulas-configuration
python3-salt
salt-proxy
salt-cloud
salt-syndic
salt-doc
salt-transactional-update
salt-api
salt-master
salt-ssh
salt-bash-completion
salt-fish-completion
salt-zsh-completion
Splunk Security Orchestration, Automation and Response (SOAR)

Install updates from vendor's website.

Tornado - update to 6.5.0
watsonx.data - update to 2.2.1
pcs - update to 0.10.5-5
pcs-snmp - update to 0.10.5-5
pcs (Red Hat package) - addressed in versions 0.10.8-1.el8_4.7, 0.10.12-6.el8_6.8, 0.10.15-4.el8_8.6, 0.10.18-2.el8_10.5, 0.11.1-10.el9_0.8
pcs - update to 0.10.18-2.0.1
pcs-snmp - update to 0.10.18-2.0.1
python-tornado - update to 4.2.1-5
python-tornado-doc - update to 4.2.1-5
python-tornado (Red Hat package) - addressed in versions 4.2.1-5.el7_9.1, 6.4.2-1.el9_2.1, 6.4.2-1.el9_4.1, 6.4.2-1.el10_0.1, 6.4.2-2.el9_6.2
python-tornado-debuginfo - addressed in versions 4.2.1-17.10.1, 4.5.3-150000.3.10.1
python-tornado-debugsource - addressed in versions 4.2.1-17.10.1, 4.5.3-150000.3.10.1
python-tornado - update to 4.2.1-17.10.1
python3-tornado - addressed in versions 4.2.1-17.10.1, 4.5.3-150000.3.10.1
python3-tornado-debuginfo - update to 4.5.3-150000.3.10.1
python-tornado - addressed in versions 5.0.2-10, 6.1-4, 6.5-1
python-tornado-debuginfo - addressed in versions 5.0.2-10, 6.1-4, 6.5-1
python-tornado-debugsource - addressed in versions 5.0.2-10, 6.1-4, 6.5-1
python2-tornado - update to 5.0.2-10
python3-tornado - addressed in versions 5.0.2-10, 6.1-4, 6.5-1
spacecmd - addressed in versions 5.1.8-3.6.1, 5.1.8-3.8.1, 5.1.10-3.11.1
mgrctl - addressed in versions 5.1.14-3.6.1, 5.1.14-3.6.2, 5.1.14-3.8.1
mgrctl-fish-completion - addressed in versions 5.1.14-3.6.1, 5.1.14-3.6.2, 5.1.14-3.8.1
mgrctl-zsh-completion - addressed in versions 5.1.14-3.6.1, 5.1.14-3.6.2, 5.1.14-3.8.1
mgrctl-bash-completion - addressed in versions 5.1.14-3.6.1, 5.1.14-3.6.2, 5.1.14-3.8.1
python-tornado (Ubuntu package) - addressed in versions 6.1.0-3ubuntu0.1~esm2, 6.4.0-1ubuntu0.2, 6.4.1-2ubuntu0.2, 6.4.2-1ubuntu0.25.04.1
python-tornado-help - addressed in versions 6.1-4, 6.5-1
python-tornado (Debian package) - update to 6.2.0-3+deb12u2
python311-tornado6-debuginfo - update to 6.3.2-150400.9.9.1
python311-tornado6 - update to 6.3.2-150400.9.9.1
python-tornado6-debugsource - update to 6.3.2-150400.9.9.1
python3-tornado-doc - update to 6.4.2-2
python3-tornado - update to 6.4.2-2
Splunk Security Orchestration, Automation and Response (SOAR) - update to 7.1.0
venv-salt-minion - addressed in versions 3006.0-3.6.2, 3006.0-3.6.3, 3006.0-3.8.4
python3-salt-testsuite - update to 3006.0-150300.53.94.1
salt-minion - update to 3006.0-150300.53.94.1
salt - update to 3006.0-150300.53.94.1
salt-standalone-formulas-configuration - update to 3006.0-150300.53.94.1
python3-salt - update to 3006.0-150300.53.94.1
salt-proxy - update to 3006.0-150300.53.94.1
salt-cloud - update to 3006.0-150300.53.94.1
salt-syndic - update to 3006.0-150300.53.94.1
salt-doc - update to 3006.0-150300.53.94.1
salt-transactional-update - update to 3006.0-150300.53.94.1
salt-api - update to 3006.0-150300.53.94.1
salt-master - update to 3006.0-150300.53.94.1
salt-ssh - update to 3006.0-150300.53.94.1
salt-bash-completion - update to 3006.0-150300.53.94.1
salt-fish-completion - update to 3006.0-150300.53.94.1
salt-zsh-completion - update to 3006.0-150300.53.94.1

• https://github.com/tornadoweb/tornado/commit/b39b892bf78fe8fea01dd45199aa88307e7162f3
• https://github.com/tornadoweb/tornado/security/advisories/GHSA-7cx3-6m66-7c5m

• Denial of service in Tornado framework
• openEuler 24.03 LTS SP1 update for python-tornado
• openEuler 24.03 LTS update for python-tornado
• Red Hat Enterprise Linux 10 update for python-tornado
• Red Hat Enterprise Linux 9 update for python-tornado
• SUSE update for python-tornado6
• SUSE update for python-tornado6
• Red Hat Enterprise Linux 9 update for python-tornado
• Red Hat Enterprise Linux 9 update for python-tornado
• SUSE update for python-tornado
• SUSE update for python-tornado
• Ubuntu update for python-tornado
• Anolis OS update for python-tornado
• openEuler 22.03 LTS SP4 update for python-tornado
• openEuler 22.03 LTS SP3 update for python-tornado
• SUSE update for python-tornado
• Debian update for python-tornado
• Red Hat Enterprise Linux 7 Extended Lifecycle Support update for python-tornado
• Red Hat Enterprise Linux 8 update for pcs
• Red Hat Enterprise Linux 8 update for pcs
• Red Hat Enterprise Linux 8 update for pcs
• Red Hat Enterprise Linux 9 update for pcs
• Red Hat Enterprise Linux 8 update for pcs
• Anolis OS update for pcs
• openEuler 20.03 LTS SP4 update for pcs
• Anolis OS update for python-tornado
• SUSE update for salt
• SUSE update for Security update 5.1.0 GM for Multi-Linux Manager Client Tools
• SUSE update for Security update 5.1.0 GM for Multi-Linux Manager Client Tools
• SUSE update for Security update 5.1.0 GM for Multi-Linux Manager Client Tools
• IBM watsonx.data update for Tornado
• openEuler 20.03 LTS SP4 update for python-tornado
• Splunk SOAR update for third-party components