CVE-2021-23165 Memory corruption in htmldoc
Heap 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
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2021-23165?
CVE-2021-23165 is a critical memory corruption vulnerability in htmldoc, published on 16 Mar 2022. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A flaw was found in htmldoc before v1.9.12. Heap buffer overflow in pspdf_prepare_outpages(), in ps-pdf.cxx may lead to execute arbitrary code and denial of service.
Which versions are affected by CVE-2021-23165?
It affects 1 product.
Products include Htmldoc Project Htmldoc.
How do I fix CVE-2021-23165?
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-2021-23165 being exploited?
There is no known exploitation of CVE-2021-23165 in the wild and no public exploit code.
Other vulnerabilities in htmldoc
Sources
Also known as DEBIAN-CVE-2021-23165, GHSA-49mr-vrxv-hmwg, UBUNTU-CVE-2021-23165, USN-5438-1, USN-5438-2.