CVE-2021-34121 Information disclosure in n/a
An out-of-bounds read in htmodoc allows attackers to leak memory layout information, potentially aiding further exploitation.
- 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-2021-34121?
CVE-2021-34121 is a high-severity vulnerability in n/a, published on 18 Jul 2023. 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
An Out of Bounds flaw was discovered in htmodoc 1.9.12 in function parse_tree() in toc.cxx, this possibly leads to memory layout information leaking in the data. This might be used in a chain of vulnerability in order to reach code execution.
Weakness: CWE-125
Which versions are affected by CVE-2021-34121?
It affects 1 product.
Products include Htmldoc Project Htmldoc.
How do I fix CVE-2021-34121?
Upgrade to a fixed version.
Is CVE-2021-34121 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2021-34121 exists.
Other vulnerabilities in n/a
Sources
Also known as DEBIAN-CVE-2021-34121, GHSA-vvmp-35v7-f6q6, UBUNTU-CVE-2021-34121.