CVE-2023-28523 IBM Informix Dynamic Server buffer overflow

What is CVE-2023-28523?

CVE-2023-28523 is a high-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 onsmsync is vulnerable to a heap buffer overflow, caused by improper bounds checking which could allow an attacker to execute arbitrary code. IBM X-Force ID: 250753.

Weakness: CWE-787, CWE-122

Which versions are affected by CVE-2023-28523?

It affects 2 products.

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

How do I fix CVE-2023-28523?

No fix has been published for CVE-2023-28523 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-2023-28523 being exploited?

There is no known exploitation of CVE-2023-28523 in the wild and no public exploit code.

Other vulnerabilities in Ibm Informix Dynamic Server

• CVE-2010-4070 Integer overflow in n/a Critical 10.0
• CVE-2009-2753 Memory corruption in n/a Critical 10.0
• CVE-2008-0949 Privilege escalation in n/a Critical 10.0
• CVE-2008-0768 Memory corruption in n/a Critical 10.0
• CVE-2011-1033 Memory corruption in n/a Critical 9.3

All Ibm Informix Dynamic Server vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-hg8q-63q2-p669.