Tornado is a Python web framework and asynchronous networking library. The algorithm used for parsing HTTP cookies in Tornado versions prior to 6.4.2 sometimes has quadratic complexity, leading to excessive CPU consumption when parsing maliciously-crafted cookie headers. This parsing occurs in the event loop thread and may block the processing of other requests. Version 6.4.2 fixes the issue.
CVSS Details
- CVSS 3.1 Base Score: 7.5
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | alma-upgrade-pcsalma-upgrade-pcs-snmpalma-upgrade-python3-tornado | Dec 4, 2024 | Nov 22, 2024 | |
| Amazon Linux Ami 2 | amazon-linux-ami-2-upgrade-python3-tornadoamazon-linux-ami-2-upgrade-python3-tornado-debuginfoamazon-linux-ami-2-upgrade-python3-tornado-doc | Jan 10, 2025 | Nov 22, 2024 | |
| Amazon_linux_2023 | amazon-linux-2023-upgrade-python3-tornadoamazon-linux-2023-upgrade-python3-tornado-debuginfoamazon-linux-2023-upgrade-python-tornado-debugsourceamazon-linux-2023-upgrade-python-tornado-doc | Feb 17, 2025 | Nov 22, 2024 | |
| Debian | debian-upgrade-python-tornado | Jan 3, 2025 | Nov 22, 2024 | |
| Oracle_linux | — | oracle-linux-upgrade-pcsoracle-linux-upgrade-pcs-snmporacle-linux-upgrade-python3-tornado | Dec 2, 2024 | Nov 22, 2024 |
| Redhat_linux | no-fix-redhat-rpm-packageredhat-upgrade-pcsredhat-upgrade-pcs-snmpredhat-upgrade-python-tornado-debugsourceredhat-upgrade-python3-tornadoredhat-upgrade-python3-tornado-debuginfo | Feb 10, 2025 | Nov 22, 2024 | |
| Rocky_linux | rocky-upgrade-pcsrocky-upgrade-pcs-snmprocky-upgrade-python3-tornadorocky-upgrade-python3-tornado-debuginfo | May 8, 2025 | Nov 22, 2024 | |
| Ubuntu | ubuntu-pro-upgrade-python-tornadoubuntu-pro-upgrade-python3-tornadoubuntu-upgrade-python3-tornado | Dec 12, 2024 | Nov 22, 2024 | |
| Vmware Photon_os | vmware-photon_os_update_tdnf | Jan 20, 2025 | Nov 22, 2024 |
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