GJSON up to 1.9.2 Regular Expression denial of service

CVSS Meta Temp Score
CVSS is a standardized scoring system to determine possibilities of attacks. The Temp Score considers temporal factors like disclosure, exploit and countermeasures. The unique Meta Score calculates the average score of different sources to provide a normalized scoring system.
Current Exploit Price (≈)
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CTI Interest Score
Our Cyber Threat Intelligence team is monitoring different web sites, mailing lists, exploit markets and social media networks. The CTI Interest Score identifies the interest of attackers and the security community for this specific vulnerability in real-time. A high score indicates an elevated risk to be targeted for this vulnerability.
3.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as problematic has been found in GJSON up to 1.9.2. Impacted is an unknown function of the component Regular Expression Handler. Such manipulation leads to denial of service. This vulnerability is referenced as CVE-2021-42836. No exploit is available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in GJSON up to 1.9.2. It has been rated as problematic. Affected by this issue is an unknown part of the component Regular Expression Handler. The manipulation with an unknown input leads to a denial of service vulnerability. Using CWE to declare the problem leads to CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. Impacted is availability.

The weakness was published 10/24/2021 as 236. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2021-42836 since 10/22/2021. There are neither technical details nor an exploit publicly available.

Upgrading to version 1.9.3 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch 590010fdac311cc8990ef5c97448d4fec8f29944 is able to eliminate this problem. The bugfix is ready for download at 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

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.5
VulDB Meta Temp Score: 3.4

VulDB Base Score: 3.5
VulDB Temp Score: 3.4
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: Denial of service
CWE: CWE-404
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

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: GJSON 1.9.3
Patch: 590010fdac311cc8990ef5c97448d4fec8f29944

Timelineinfo

10/22/2021 🔍
10/24/2021 +2 days 🔍
10/24/2021 +0 days 🔍
10/29/2021 +5 days 🔍

Sourcesinfo

Advisory: 236
Status: Confirmed

CVE: CVE-2021-42836 (🔍)
GCVE (CVE): GCVE-0-2021-42836
GCVE (VulDB): GCVE-100-185300

Entryinfo

Created: 10/24/2021 08:45
Updated: 10/29/2021 18:42
Changes: 10/24/2021 08:45 (42), 10/29/2021 18:42 (1)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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