CVE-2024-52804

Tornado has HTTP cookie parsing DoS vulnerability

Description

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.23%
Affected: tornadoweb tornado
Published at:
Updated at:

References

Link Tags
https://github.com/tornadoweb/tornado/security/advisories/GHSA-8w49-h785-mj3c
https://github.com/tornadoweb/tornado/commit/d5ba4a1695fbf7c6a3e54313262639b198291533
https://github.com/advisories/GHSA-7pwv-g7hj-39pr

Frequently Asked Questions

What is the severity of CVE-2024-52804?
CVE-2024-52804 has been scored as a high severity vulnerability.
How to fix CVE-2024-52804?
To fix CVE-2024-52804, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-52804 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-52804 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-52804?
CVE-2024-52804 affects tornadoweb tornado.
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