Eventlet up to 0.30.x on Python Compressed Data resource consumption

Summaryinfo

A vulnerability, which was classified as problematic, has been found in Eventlet up to 0.30.x on Python. Impacted is an unknown function of the component Compressed Data Handler. The manipulation leads to resource consumption. This vulnerability is uniquely identified as CVE-2021-21419. The attack is possible to be carried out remotely. No exploit exists. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Eventlet up to 0.30.x on Python. It has been rated as problematic. This issue affects an unknown functionality of the component Compressed Data Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. Using CWE to declare the problem leads to CWE-400. The product does not properly control the allocation and maintenance of a limited resource, thereby enabling an actor to influence the amount of resources consumed, eventually leading to the exhaustion of available resources. Impacted is availability.

The weakness was disclosed 05/07/2021. It is possible to read the advisory at github.com. The identification of this vulnerability is CVE-2021-21419. The technical details are unknown and an exploit is not publicly available. The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

The vulnerability scanner Nessus provides a plugin with the ID 282275 (Unity Linux 20.1070e Security Update: python-eventlet (UTSA-2026-000486)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 0.31.0 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (282275). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Name

• Eventlet

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30

Website

• Product: https://github.com/eventlet/eventlet/

CPE 2.3info

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CPE 2.2info

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Entryinfo

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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