CVE-2021-21236

CVSS V2 Medium 4.3 CVSS V3 Medium 5.5
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.
Overview
  • CVE ID
  • CVE-2021-21236
  • Assigner
  • security-advisories@github.com
  • Vulnerability Status
  • Analyzed
  • Published Version
  • 2021-01-06T17:15:23
  • Last Modified Date
  • 2021-01-13T15:43:11
Weakness Enumerations
CWE URL
CWE-400 http://cwe.mitre.org/data/definitions/400.html
CPE Configuration (Product)
CPE Vulnerable Operator Version Start Version End
cpe:2.3:a:courtbouillon:cairosvg:*:*:*:*:*:*:*:* 1 OR 2.5.1
CVSS Version 2
  • Version
  • 2.0
  • Vector String
  • AV:N/AC:M/Au:N/C:N/I:N/A:P
  • Access Vector
  • NETWORK
  • Access Compatibility
  • MEDIUM
  • Authentication
  • NONE
  • Confidentiality Impact
  • NONE
  • Integrity Impact
  • NONE
  • Availability Impact
  • PARTIAL
  • Base Score
  • 4.3
  • Severity
  • MEDIUM
  • Exploitability Score
  • 8.6
  • Impact Score
  • 2.9
CVSS Version 3
  • Version
  • 3.1
  • Vector String
  • CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
  • Attack Vector
  • LOCAL
  • Attack Compatibility
  • LOW
  • Privileges Required
  • NONE
  • User Interaction
  • REQUIRED
  • Scope
  • UNCHANGED
  • Confidentiality Impact
  • NONE
  • Availability Impact
  • HIGH
  • Base Score
  • 5.5
  • Base Severity
  • MEDIUM
  • Exploitability Score
  • 1.8
  • Impact Score
  • 3.6
References
Reference URL Reference Tags
https://github.com/Kozea/CairoSVG/commit/cfc9175e590531d90384aa88845052de53d94bf3 Patch Third Party Advisory
https://github.com/Kozea/CairoSVG/security/advisories/GHSA-hq37-853p-g5cf Exploit Third Party Advisory
https://pypi.org/project/CairoSVG/ Product Third Party Advisory
https://github.com/Kozea/CairoSVG/releases/tag/2.5.1 Release Notes Third Party Advisory
Sources
Source Name Source URL
NIST https://nvd.nist.gov/vuln/detail/CVE-2021-21236
MITRE https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-21236
History
Created Old Value New Value Data Type Notes
2022-05-10 07:27:26 Added to TrackCVE
2022-12-05 19:27:23 2021-01-06T17:15Z 2021-01-06T17:15:23 CVE Published Date updated
2022-12-05 19:27:23 2021-01-13T15:43:11 CVE Modified Date updated
2022-12-05 19:27:23 Analyzed Vulnerability Status updated