CVE-2009-0647 Denial of service in n/a

Medium 5.0 Published Updated

Remote attackers can crash Windows Live Messenger by sending a modified packet header, causing a denial of service.

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-2009-0647?

CVE-2009-0647 is a medium-severity denial of service vulnerability in n/a, published on 19 Feb 2009. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

msnmsgr.exe in Windows Live Messenger (WLM) 2009 build 14.0.8064.206, and other 14.0.8064.x builds, allows remote attackers to cause a denial of service (application crash) via a modified header in a packet, as possibly demonstrated by a UTF-8.0 value of the charset field in the Content-Type header line. NOTE: this has been reported as a format string vulnerability by some sources, but the provenance of that information is unknown.

Weakness: CWE-20

Which versions are affected by CVE-2009-0647?

It affects 1 product.

Products include Microsoft Windows Live Messenger.

How do I fix CVE-2009-0647?

No fix has been published for CVE-2009-0647 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-2009-0647 being exploited?

There is no known exploitation of CVE-2009-0647 in the wild and no public exploit code.

Sources

Also known as GHSA-vgwx-7mjc-5w5g.

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