Is CVE-2021-21236 actively exploited?

CVE-2021-21236 has no public evidence of in-the-wild exploitation as of 2024-11-21.

What is the CVSS score for CVE-2021-21236?

CVE-2021-21236 has a CVSS score of 5.7 (MEDIUM severity). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H.

How do I patch CVE-2021-21236?

Patch guidance is available from courtbouillon security advisories. CVEDatabase generates AI-assisted remediation guidance on demand for CVE-2021-21236.

Which products are affected by CVE-2021-21236?

1 product: courtbouillon cairosvg.

CVE-2021-21236 - remediation guidance & executive summary

Description

CairoSVG is a Python (pypi) package. CairoSVG is an SVG converter based on Cairo. In CairoSVG before version 2.5.1, there is a regular expression denial of service (REDoS) vulnerability. When processing SVG files, the python package CairoSVG uses two regular expressions which are vulnerable to Regular Expression Denial of Service (REDoS). If an attacker provides a malicious SVG, it can make cairosvg get stuck processing the file for a very long time. This is fixed in version 2.5.1. See Referenced GitHub advisory for more information.

CVSS Metrics

Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Attack Vector: network
Complexity: low
Privileges: low
User Action: required
Scope: unchanged
Confidentiality: none
Integrity: none
Availability: high
Weaknesses: CWE-400

Metadata

Primary Vendor: COURTBOUILLON
Published: 1/6/2021
Last Modified: 11/21/2024
Source: NIST NVD
Note: Verify all details with official vendor sources before applying patches.

CVE-2021-21236

Description

CVSS Metrics

Metadata

Affected Products

Remediation Guidance

Executive Summary