CVE-2006-0021 Denial of service in n/a
Remote attackers can cause a system hang in Windows XP and Server 2003 by sending a malformed IGMP packet.
- 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-2006-0021?
CVE-2006-0021 is a high-severity denial of service vulnerability in Microsoft Windows 2003 Server, published on 14 Feb 2006. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
Microsoft Windows XP SP1 and SP2, and Server 2003 up to SP1, allows remote attackers to cause a denial of service (hang) via an IGMP packet with an invalid IP option, aka the "IGMP v3 DoS Vulnerability."
Weakness: CWE-119
Which versions are affected by CVE-2006-0021?
It affects 2 products.
Products include Microsoft Windows 2003 Server, Microsoft Windows Xp.
How do I fix CVE-2006-0021?
No fix has been published for CVE-2006-0021 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-2006-0021 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2006-0021 exists.
Public exploit code: 2 Exploit-DB entries.
Other vulnerabilities in Microsoft Windows 2003 Server
Sources
Also known as GHSA-g367-j7q7-9r56.