CVE-2023-22796

High

Description

A regular expression based DoS vulnerability in Active Support <6.1.7.1 and <7.0.4.1. A specially crafted string passed to the underscore method can cause the regular expression engine to enter a state of catastrophic backtracking. This can cause the process to use large amounts of CPU and memory, leading to a possible DoS vulnerability.

SeverityHigh

CVSS7.5

Exploit probability—

ProductActivesupport

PublishedFeb 9, 2023

First seenFeb 9, 2023

Weakness typeCWE-400Uncontrolled resource consumption

How to fix

Update

activesupport_project activesupport6.1.7.1, 7.0.4.1 or later

Vendor advisories

debian.org/security/2023/dsa-5372

Affected products

Product	Affected versions	Fixed in
activesupport_project activesupport	v < 6.1.7.1, 7.0.0 ≤ v < 7.0.4.1	6.1.7.1, 7.0.4.1

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