CVE-2006-3942 Null dereference in n/a

What is CVE-2006-3942?

CVE-2006-3942 is a high-severity vulnerability in Microsoft Windows 2000, published on 31 Jul 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The server driver (srv.sys) in Microsoft Windows NT 4.0, 2000, XP, and Server 2003 allows remote attackers to cause a denial of service (system crash) via an SMB_COM_TRANSACTION SMB message that contains a string without null character termination, which leads to a NULL dereference in the ExecuteTransaction function, possibly related to an "SMB PIPE," aka the "Mailslot DOS" vulnerability. NOTE: the name "Mailslot DOS" was derived from incomplete initial research; the vulnerability is not associated with a mailslot.

Weakness: CWE-20

Which versions are affected by CVE-2006-3942?

It affects 3 products.

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

How do I fix CVE-2006-3942?

No fix has been published for CVE-2006-3942 yet. Limit exposure of the affected software until one is available.

Is CVE-2006-3942 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-3942 exists.

Public exploit code: 2 Metasploit modules and 1 Exploit-DB entry.

Other vulnerabilities in Microsoft Windows 2000

• CVE-2008-4250 Microsoft Windows Buffer Overflow Exploited Critical 9.8
• CVE-2010-0232 Microsoft Windows Kernel Exception Handler Exploited High 7.8
• CVE-2009-1123 Microsoft Windows Improper Input Validation Exploited High 7.8
• CVE-2002-0367 Microsoft Windows Privilege Escalation Exploited High 7.8
• CVE-2010-0269 Memory corruption in n/a Critical 10.0

All Microsoft Windows 2000 vulnerabilities

Sources

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

Also known as GHSA-3f78-rrw8-v6hw.