CVE-2007-3917 Denial of service in n/a

High 7.8 Published Updated

Remote servers can crash Wesnoth clients and servers by sending long messages with invalid UTF-8 characters, 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
Available

What is CVE-2007-3917?

CVE-2007-3917 is a high-severity denial of service vulnerability in n/a, published on 11 Oct 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

The multiplayer engine in Wesnoth 1.2.x before 1.2.7 and 1.3.x before 1.3.9 allows remote servers to cause a denial of service (crash) via a long message with multibyte characters that can produce an invalid UTF-8 string after it is truncated, which triggers an uncaught exception, involving the truncate_message function in server/server.cpp. NOTE: this issue affects both clients and servers.

Weakness: CWE-134

Which versions are affected by CVE-2007-3917?

It affects 1 product.

Products include Wesnoth Wesnoth.

How do I fix CVE-2007-3917?

Upgrade to a fixed version.

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-2007-3917 being exploited?

There is no known exploitation of CVE-2007-3917 in the wild and no public exploit code.

Sources

Also known as DSA-1386-1, GHSA-5x5x-c9q8-x83f.

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