CVE-2021-23206 Memory corruption in htmldoc
A stack buffer overflow in htmldoc allows attackers to execute arbitrary code or cause denial of service via crafted input.
- 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-2021-23206?
CVE-2021-23206 is a high-severity memory corruption vulnerability in htmldoc, published on 2 Mar 2022. 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
A flaw was found in htmldoc in v1.9.12 and prior. A stack buffer overflow in parse_table() in ps-pdf.cxx may lead to execute arbitrary code and denial of service.
Which versions are affected by CVE-2021-23206?
It affects 1 product.
Products include Htmldoc Project Htmldoc.
How do I fix CVE-2021-23206?
Upgrade to a fixed version.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2021-23206 being exploited?
There is no known exploitation of CVE-2021-23206 in the wild and no public exploit code.
Other vulnerabilities in htmldoc
Sources
Also known as DEBIAN-CVE-2021-23206, GHSA-h5p5-cjw3-9266, UBUNTU-CVE-2021-23206.