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CVE Vulnerabilities

CVE-2022-25887

Inefficient Regular Expression Complexity

Published: Aug 30, 2022 | 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
5.3 LOW
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2022-25887
CWEhttps://cwe.mitre.org/data/definitions/1333.html

The package sanitize-html before 2.7.1 are vulnerable to Regular Expression Denial of Service (ReDoS) due to insecure global regular expression replacement logic of HTML comment removal.

Weakness

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

Affected Software

NameVendorStart VersionEnd Version
Sanitize-htmlApostrophecms*2.7.1 (excluding)
Jupyter-notebookUbuntubionic*
Jupyter-notebookUbuntudevel*
Jupyter-notebookUbuntuesm-apps/jammy*
Jupyter-notebookUbuntuesm-apps/noble*
Jupyter-notebookUbuntujammy*
Jupyter-notebookUbuntukinetic*
Jupyter-notebookUbuntulunar*
Jupyter-notebookUbuntumantic*
Jupyter-notebookUbuntunoble*
Jupyter-notebookUbuntuoracular*
Jupyter-notebookUbuntuplucky*
Jupyter-notebookUbuntuquesting*
Jupyter-notebookUbuntuupstream*
Node-sanitize-htmlUbuntukinetic*
Node-sanitize-htmlUbuntulunar*
Node-sanitize-htmlUbuntumantic*
Node-sanitize-htmlUbuntuoracular*
Node-sanitize-htmlUbuntuplucky*

Extended Description

	  Attackers can create crafted inputs that
	  intentionally cause the regular expression to use
	  excessive backtracking in a way that causes the CPU
	  consumption to spike.

Potential Mitigations

References

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