Regular Expression Denial Of Service (ReDoS)

2024-04-2205:33:51

Veracode Vulnerability Database

sca.analysiscenter.veracode.com

tcpdf

software

redos

vulnerability

regular expression

CVSS3

7.5

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

AI Score

6.6

Confidence

High

EPSS

Percentile

15.5%

JSON

tecnickcom/tcpdf is vulnerable to Regular Expression Denial of Service (ReDoS). The vulnerability is caused due to a lack of proper validation in a regular expression used to parse colour information from HTML in the convertHTMLColorToDec() function. This can lead to excessive backtracking, resulting in a ReDoS (Regular Expression Denial of Service).