Vulnerability identifier: #VU24485

Vulnerability risk: High

CVSSv3.1: 8.5 [CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2020-5496

CWE-ID: CWE-122

Exploitation vector: Network

Exploit availability: No

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

Vendor: fontforge.org

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the the "Type2NotDefSplines()" function in splinesave.c. A remote attacker can trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation
Install update from vendor's website.

Vulnerable software versions

FontForge: 20190801

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External links
http://lists.opensuse.org/opensuse-security-announce/2020-01/msg00041.html
http://github.com/fontforge/fontforge/issues/4085

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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.