CVE-2023-28527 IBM Informix Dynamic Server buffer overflow

Medium 6.2 Published 9 Dec 2023 Updated 16 Sep 2024

A local attacker can trigger a heap buffer overflow in IBM Informix Dynamic Server, causing a segmentation fault and denial of service.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Local or same network only
Victim action needed: Not needed
Fix: None listed

What is CVE-2023-28527?

CVE-2023-28527 is a medium-severity memory corruption vulnerability in Ibm Informix Dynamic Server, published on 9 Dec 2023. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

IBM Informix Dynamic Server 12.10 and 14.10 cdr is vulnerable to a heap buffer overflow, caused by improper bounds checking which could allow a local user to cause a segmentation fault. IBM X-Force ID: 251206.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2023-28527?

It affects 2 products.

Products include Ibm Informix Dynamic Server, Ibm Informix Dynamic Server on Cloud Pak for Data.

How do I fix CVE-2023-28527?

No fix has been published for CVE-2023-28527 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-2023-28527 being exploited?

There is no known exploitation of CVE-2023-28527 in the wild and no public exploit code.

All Ibm Informix Dynamic Server vulnerabilities

Sources

Also known as GHSA-cx9x-3cmx-r6cq.