CVE-2006-5559 Use after free in n/a

Critical 9.3 Published 27 Oct 2006 Updated 7 Aug 2024

Remote attackers can trigger a use-after-free in ADODB.Connection ActiveX controls via Internet Explorer, potentially executing arbitrary code or causing a crash.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: A user has to click or open something
Fix: None listed

What is CVE-2006-5559?

CVE-2006-5559 is a critical use after free vulnerability in n/a, published on 27 Oct 2006. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

The Execute method in the ADODB.Connection 2.7 and 2.8 ActiveX control objects (ADODB.Connection.2.7 and ADODB.Connection.2.8) in the Microsoft Data Access Components (MDAC) 2.5 SP3, 2.7 SP1, 2.8, and 2.8 SP1 does not properly track freed memory when the second argument is a BSTR, which allows remote attackers to cause a denial of service (Internet Explorer crash) and possibly execute arbitrary code via certain strings in the second and third arguments.

Weakness: CWE-20

Which versions are affected by CVE-2006-5559?

It affects 1 product.

Products include Microsoft Data Access Components.

How do I fix CVE-2006-5559?

No fix has been published for CVE-2006-5559 yet. Limit exposure of the affected software until one is available.

Upgrade to the fixed version. These bugs are found with fuzzing and sanitisers and avoided by memory-safe languages. More about Use after free.

Is CVE-2006-5559 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-5559 exists.

Public exploit code: 1 Exploit-DB entry.

Sources

Also known as GHSA-662x-vqg2-x4mr.