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CVE Vulnerabilities

CVE-2023-31606

Inefficient Regular Expression Complexity

Published: Jun 06, 2023 | 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
RedHat/V2
RedHat/V3
7.5 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2023-31606
CWEhttps://cwe.mitre.org/data/definitions/1333.html

A Regular Expression Denial of Service (ReDoS) issue was discovered in the sanitize_html function of redcloth gem v4.0.0. This vulnerability allows attackers to cause a Denial of Service (DoS) via supplying a crafted payload.

Weakness

The product uses a regular expression with a worst-case computational complexity that is inefficient and possibly exponential.

Affected Software

NameVendorStart VersionEnd Version
RedclothPromptworks4.0.0 (including)4.3.2 (including)
Ruby-redclothUbuntubionic*
Ruby-redclothUbuntudevel*
Ruby-redclothUbuntuesm-apps-legacy/xenial*
Ruby-redclothUbuntuesm-apps/bionic*
Ruby-redclothUbuntuesm-apps/focal*
Ruby-redclothUbuntuesm-apps/jammy*
Ruby-redclothUbuntuesm-apps/xenial*
Ruby-redclothUbuntufocal*
Ruby-redclothUbuntujammy*
Ruby-redclothUbuntukinetic*
Ruby-redclothUbuntulunar*
Ruby-redclothUbuntutrusty*
Ruby-redclothUbuntuupstream*
Ruby-redclothUbuntuxenial*

Potential Mitigations

References

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