CVE-2017-11576 Denial of service in n/a
A crafted OTF file can cause a denial of service in FontForge due to an unchecked size in a memory copy operation.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2017-11576?
CVE-2017-11576 is a medium-severity denial of service vulnerability in n/a, published on 23 Jul 2017. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.
Official description
FontForge 20161012 does not ensure a positive size in a weight vector memcpy call in readcfftopdict (parsettf.c) resulting in DoS via a crafted otf file.
Weakness: CWE-119
Which versions are affected by CVE-2017-11576?
It affects 1 product.
Products include Fontforge Fontforge.
How do I fix CVE-2017-11576?
Apply the vendor's patch.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2017-11576 being exploited?
There is no known exploitation of CVE-2017-11576 in the wild and no public exploit code.
Other vulnerabilities in n/a
- CVE-2019-15785 Memory corruption in n/a
- CVE-2025-15269 FontForge SFD File Parsing Use-After-Free Remote Code Execution Vulnerability
- CVE-2025-15270 FontForge SFD File Parsing Improper Validation of Array Index Remote Code Execution Vulnerability
- CVE-2025-15271 FontForge SFD File Parsing Improper Validation of Array Index Remote Code Execution Vulnerability
- CVE-2025-15272 FontForge SFD File Parsing Heap-based Buffer Overflow Remote Code Execution Vulnerability
Sources
Also known as DEBIAN-CVE-2017-11576, GHSA-f6j8-4mx6-p423, UBUNTU-CVE-2017-11576.