Vulnerability 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 Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Courtbouillon | Cairosvg | < 2.5.1 |
Related Weaknesses (CWE)
References
- https://github.com/Kozea/CairoSVG/commit/cfc9175e590531d90384aa88845052de53d94bfPatchThird Party Advisory
- https://github.com/Kozea/CairoSVG/releases/tag/2.5.1Release NotesThird Party Advisory
- https://github.com/Kozea/CairoSVG/security/advisories/GHSA-hq37-853p-g5cfExploitThird Party Advisory
- https://pypi.org/project/CairoSVG/ProductThird Party Advisory
- https://github.com/Kozea/CairoSVG/commit/cfc9175e590531d90384aa88845052de53d94bfPatchThird Party Advisory
- https://github.com/Kozea/CairoSVG/releases/tag/2.5.1Release NotesThird Party Advisory
- https://github.com/Kozea/CairoSVG/security/advisories/GHSA-hq37-853p-g5cfExploitThird Party Advisory
- https://pypi.org/project/CairoSVG/ProductThird Party Advisory
FAQ
What is CVE-2021-21236?
CVE-2021-21236 is a vulnerability with a CVSS score of 5.7 (MEDIUM). 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 processi...
How severe is CVE-2021-21236?
CVE-2021-21236 has been rated MEDIUM with a CVSS base score of 5.7/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2021-21236?
Check the references section above for vendor advisories and patch information. Affected products include: Courtbouillon Cairosvg.