CVE-2023-39128 Memory corruption in n/a

Medium 5.5 Published 25 Jul 2023 Updated 14 Oct 2026

A stack overflow in GNU GDB's ada_decode function allows attackers to cause denial of service or potentially execute code via crafted inputs.

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-2023-39128?

CVE-2023-39128 is a medium-severity memory corruption vulnerability in n/a, published on 25 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

GNU gdb (GDB) 13.0.50.20220805-git was discovered to contain a stack overflow via the function ada_decode at /gdb/ada-lang.c.

Weakness: CWE-787

Which versions are affected by CVE-2023-39128?

It affects 1 product.

Products include Gnu Gdb.

How do I fix CVE-2023-39128?

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-2023-39128 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2023-39128 exists.

Sources

Also known as AZL-27628, AZL-27668, AZL-34631, AZL-34723, DEBIAN-CVE-2023-39128, ECHO-078c-4956-f70a and 3 more.