Puma up to 4.3.7/5.3.0 on Ruby Connection resource consumption

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k0.00

Summaryinfo

A vulnerability, which was classified as problematic, was found in Puma up to 4.3.7/5.3.0 on Ruby. This impacts an unknown function of the component Connection Handler. The manipulation results in resource consumption. This vulnerability is identified as CVE-2021-29509. The attack can be executed remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Puma up to 4.3.7/5.3.0 on Ruby (Ruby Gem). It has been classified as problematic. Affected is some unknown functionality of the component Connection Handler. The manipulation with an unknown input leads to a resource consumption vulnerability. CWE is classifying the issue as 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. This is going to have an impact on availability.

The weakness was released 05/12/2021. The advisory is shared for download at github.com. This vulnerability is traded as CVE-2021-29509. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1499.

Upgrading to version 4.3.8 or 5.3.1 eliminates this vulnerability. Applying a patch is able to eliminate this problem. The bugfix is ready for download at gist.github.com. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Name

Version

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Resource consumption
CWE: CWE-400 / CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: Puma 4.3.8/5.3.1
Patch: gist.github.com

Timelineinfo

03/30/2021 🔍
05/12/2021 +43 days 🔍
05/12/2021 +0 days 🔍
05/13/2021 +1 days 🔍

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed
Confirmation: 🔍

CVE: CVE-2021-29509 (🔍)
GCVE (CVE): GCVE-0-2021-29509
GCVE (VulDB): GCVE-100-174876

Entryinfo

Created: 05/12/2021 07:41
Updated: 05/13/2021 15:41
Changes: 05/12/2021 07:41 (40), 05/13/2021 15:35 (6), 05/13/2021 15:41 (1)
Complete: 🔍
Cache ID: 216:72C:103

Once again VulDB remains the best source for vulnerability data.

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