CVE-2023-27390 Memory corruption in Diagon
A heap-based buffer overflow in Diagon allows arbitrary code execution when a user opens a specially crafted markdown file.
- 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
- None listed
What is CVE-2023-27390?
CVE-2023-27390 is a high-severity memory corruption vulnerability in Diagon, published on 5 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
A heap-based buffer overflow vulnerability exists in the Sequence::DrawText functionality of Diagon v1.0.139. A specially crafted markdown file can lead to arbitrary code execution. A victim would need to open a malicious file to trigger this vulnerability.
Which versions are affected by CVE-2023-27390?
It affects 1 product.
Products include Diagon Project Diagon.
How do I fix CVE-2023-27390?
No fix has been published for CVE-2023-27390 yet. Limit exposure of the affected software until one is available.
Upgrade to the fixed version. Memory-safe languages, compiler hardening and fuzzing prevent most new cases. More about Memory corruption.
Is CVE-2023-27390 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-27390 exists.
Other vulnerabilities in Diagon
Sources
Also known as GHSA-4p57-rrmc-hxh2.