njs up to 0.7.1 njs_promise_perform_then type confusion

HistoryDiffrelatejsonxmlCTI

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 (≈) Our analysts are monitoring exploit markets and are in contact with vulnerability brokers. The range indicates the observed or calculated exploit price to be seen on exploit markets. A good indicator to understand the monetary effort required for and the popularity of an attack.	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.
6.0	$0-$5k	0.00

Summaryinfo

A vulnerability has been found in njs up to 0.7.1 and classified as critical. Impacted is the function njs_promise_perform_then. Performing a manipulation results in type confusion. This vulnerability is reported as CVE-2021-46463. The attack is possible to be carried out remotely. No exploit exists. Applying a patch is the recommended action to fix this issue.

Detailsinfo

A vulnerability classified as critical has been found in njs up to 0.7.1. This affects the function njs_promise_perform_then. The manipulation with an unknown input leads to a type confusion vulnerability. CWE is classifying the issue as CWE-843. The product allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was disclosed 02/15/2022 as 447. The advisory is shared at github.com. This vulnerability is uniquely identified as CVE-2021-46463 since 01/24/2022. Technical details are known, but no exploit is available.

Applying the patch 6a40a85ff239497c6458c7dbef18f6a2736fe992 is able to eliminate this problem. The bugfix is ready for download at github.com.

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Productinfo

Name

Version

License

open-source

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.3
VulDB Meta Temp Score: 6.0

VulDB Base Score: 6.3
VulDB Temp Score: 6.0
VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv2info

AV	AC	Au	C	I	A
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💳	💳	💳	💳	💳	💳
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Vector	Complexity	Authentication	Confidentiality	Integrity	Availability
Unlock	Unlock	Unlock	Unlock	Unlock	Unlock
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

Exploitinginfo

Class: Type confusion
CWE: CWE-843
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

0-Day	Unlock	Unlock	Unlock	Unlock
Today	Unlock	Unlock	Unlock	Unlock

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Patch
Status: 🔍

0-Day Time: 🔍

Patch: 6a40a85ff239497c6458c7dbef18f6a2736fe992

Timelineinfo

01/24/2022 🔍
02/15/2022 +22 days 🔍
02/15/2022 +0 days 🔍
02/18/2022 +3 days 🔍

Sourcesinfo

Advisory: 447
Status: Confirmed

CVE: CVE-2021-46463 (🔍)
GCVE (CVE): GCVE-0-2021-46463
GCVE (VulDB): GCVE-100-193077

Entryinfo

Created: 02/15/2022 03:18
Updated: 02/18/2022 07:12
Changes: 02/15/2022 03:18 (40), 02/18/2022 07:12 (1)
Complete: 🔍
Cache ID: 216::103