Vulnerability identifier: #VU49382

Vulnerability risk: Medium

CVSSv3.1: 5.7 [CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2021-21236

CWE-ID: CWE-20

Exploitation vector: Network

Exploit availability: No

Vulnerable software:
CairoSVG
Web applications / Modules and components for CMS

Vendor: Kozea

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can trick a victim to open a specially crafted SVG file and perform a denial of service (DoS) attack.

Mitigation
Install updates from vendor's website.

Vulnerable software versions

CairoSVG: 2.5.0

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External links
http://github.com/Kozea/CairoSVG/commit/cfc9175e590531d90384aa88845052de53d94bf3
http://github.com/Kozea/CairoSVG/releases/tag/2.5.1
http://github.com/Kozea/CairoSVG/security/advisories/GHSA-hq37-853p-g5cf
http://pypi.org/project/CairoSVG/

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Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.