CVE Vulnerabilities

CVE-2022-25844

Inefficient Regular Expression Complexity

Published: May 01, 2022 | Modified: Nov 07, 2023
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 2.x
5 MEDIUM
AV:N/AC:L/Au:N/C:N/I:N/A:P
RedHat/V2
RedHat/V3
7.5 MODERATE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM

The package angular after 1.7.0 are vulnerable to Regular Expression Denial of Service (ReDoS) by providing a custom locale rule that makes it possible to assign the parameter in posPre: .repeat() of NUMBER_FORMATS.PATTERNS[1].posPre with a very high value. Note: 1) This package has been deprecated and is no longer maintained. 2) The vulnerable versions are 1.7.0 and higher.

Weakness

The product uses a regular expression with an inefficient, possibly exponential worst-case computational complexity that consumes excessive CPU cycles.

Affected Software

Name Vendor Start Version End Version
Angular Angularjs 1.7.0 (including) *
Angular.js Ubuntu devel *
Angular.js Ubuntu esm-apps/focal *
Angular.js Ubuntu esm-apps/jammy *
Angular.js Ubuntu esm-apps/noble *
Angular.js Ubuntu focal *
Angular.js Ubuntu impish *
Angular.js Ubuntu jammy *
Angular.js Ubuntu kinetic *
Angular.js Ubuntu lunar *
Angular.js Ubuntu mantic *
Angular.js Ubuntu noble *
Angular.js Ubuntu oracular *

Extended Description

	  Attackers can create crafted inputs that
	  intentionally cause the regular expression to use
	  excessive backtracking in a way that causes the CPU
	  consumption to spike.

Potential Mitigations

References