CVE Vulnerabilities

CVE-2021-28092

Inefficient Regular Expression Complexity

Published: Mar 12, 2021 | Modified: Nov 21, 2024
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

The is-svg package 2.1.0 through 4.2.1 for Node.js uses a regular expression that is vulnerable to Regular Expression Denial of Service (ReDoS). If an attacker provides a malicious string, is-svg will get stuck processing the input for a very long time.

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
Is-svg Is-svg_project 2.1.0 (including) 4.2.1 (including)
Red Hat Advanced Cluster Management for Kubernetes 2.3 for RHEL 8 RedHat rhacm2/console-api-rhel8:v2.3.0-63 *
Red Hat Advanced Cluster Management for Kubernetes 2.3 for RHEL 8 RedHat rhacm2/search-ui-rhel8:v2.3.0-59 *
Red Hat OpenShift Container Platform 4.8 RedHat openshift4/ose-thanos-rhel8:v4.8.0-202106291913.p0.git.c358e96.assembly.stream *
Red Hat OpenShift Container Platform 4.9 RedHat openshift4/ose-prometheus:v4.9.0-202109302016.p0.git.3197fa7.assembly.stream *

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