CVE-2006-2374 Denial of service in n/a

Medium 5.5 Published Updated

Local attackers can cause a system hang in Windows by triggering a deadlock in the SMB driver via a specific ioctl call.

Exploited in the wild
Not known
Login needed
Any signed-in user
Attackable
Local or same network only
Victim action needed
Not needed
Fix
None listed

What is CVE-2006-2374?

CVE-2006-2374 is a medium-severity denial of service vulnerability in Microsoft Windows 2000, published on 13 Jun 2006. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

The Server Message Block (SMB) driver (MRXSMB.SYS) in Microsoft Windows 2000 SP4, XP SP1 and SP2, and Server 2003 SP1 and earlier allows local users to cause a denial of service (hang) by calling the MrxSmbCscIoctlCloseForCopyChunk with the file handle of the shadow device, which results in a deadlock, aka the "SMB Invalid Handle Vulnerability."

Weakness: CWE-667

Which versions are affected by CVE-2006-2374?

It affects 3 products.

Products include Microsoft Windows 2000, Microsoft Windows 2003 Server, Microsoft Windows Xp.

How do I fix CVE-2006-2374?

No fix has been published for CVE-2006-2374 yet. Limit exposure of the affected software until one is available.

Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.

Is CVE-2006-2374 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-2374 exists.

Public exploit code: 2 Exploit-DB entries.

All Microsoft Windows 2000 vulnerabilities

Sources

Also known as GHSA-3rmc-m2pw-8q44.

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