CVE-2021-3801 : prism is vulnerable to Inefficient Regular Expression Complexity

prism is vulnerable to Inefficient Regular Expression Complexity

Published 2021-09-15 13:15:08

Updated 2022-07-29 16:52:58

Source huntr.dev

View at NVD, CVE.org

Products affected by CVE-2021-3801

Prismjs » Prism » For Node.js
Versions before (<) 1.25.0
cpe:2.3:a:prismjs:prism:*:*:*:*:*:node.js:*:*
Matching versions

EPSS FAQ

0.28%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 49 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:N/A:P	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: None Availability Impact: Partial
7.5	HIGH	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	huntr.dev
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High
6.5	MEDIUM	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H	2.8	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE-1333 Inefficient Regular Expression Complexity

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

Assigned by: security@huntr.dev (Secondary)

https://github.com/prismjs/prism/commit/0ff371bb4775a131634f47d0fe85794c547232f9

Markup: Fixed ReDoS (#3078) · PrismJS/prism@0ff371b · GitHub
Patch;Third Party Advisory
https://huntr.dev/bounties/8c16ab31-6eb6-46d1-b9a4-387222fe1b8a

huntr: Inefficient Regular Expression Complexity JavaScript Vulnerability in prism
Exploit;Issue Tracking;Patch;Third Party Advisory

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