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veracodeVeracode Vulnerability DatabaseVERACODE:40834
HistoryJun 08, 2023 - 9:02 a.m.

Regular Expression Denial Of Service (ReDoS)

2023-06-0809:02:05
Veracode Vulnerability Database
sca.analysiscenter.veracode.com
2
redcloth
redos
clean_html
html.rb
inefficient regex

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

EPSS

0.001

Percentile

46.7%

RedCloth is vulnerable to Regular Expression Denial Of Service (ReDoS). The vulnerability exists in the clean_html function of html.rb due to inefficient regular expressions complexity, leading to long parsing times or an application crash.

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

EPSS

0.001

Percentile

46.7%