CVE-2009-3103 Memory corruption in n/a

Critical 10.0 Published 8 Sep 2009 Updated 7 Aug 2024

Remote attackers can execute arbitrary code or crash the system via a malformed SMBv2 packet, affecting Windows Vista, Server 2008, and 7.

Exploited in the wild: Not known
Login needed: Not needed
Attackable: Over the internet
Victim action needed: Not needed
Fix: None listed

What is CVE-2009-3103?

CVE-2009-3103 is a critical memory corruption vulnerability in Microsoft Windows Server 2008, published on 8 Sep 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

Array index error in the SMBv2 protocol implementation in srv2.sys in Microsoft Windows Vista Gold, SP1, and SP2, Windows Server 2008 Gold and SP2, and Windows 7 RC allows remote attackers to execute arbitrary code or cause a denial of service (system crash) via an & (ampersand) character in a Process ID High header field in a NEGOTIATE PROTOCOL REQUEST packet, which triggers an attempted dereference of an out-of-bounds memory location, aka "SMBv2 Negotiation Vulnerability." NOTE: some of these details are obtained from third party information.

Weakness: CWE-399

Which versions are affected by CVE-2009-3103?

It affects 2 products.

Products include Microsoft Windows Server 2008, Microsoft Windows Vista.

How do I fix CVE-2009-3103?

No fix has been published for CVE-2009-3103 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-2009-3103 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2009-3103 exists.

Public exploit code: 3 Metasploit modules, 6 Exploit-DB entries and 6 proofs of concept on GitHub.

All Microsoft Windows Server 2008 vulnerabilities

Sources

Also known as GHSA-47wf-g7rm-46qq.