InspIRCd: Denial of Service

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-irc/inspircd	< 1.1.19	>= 1.1.19	All supported architectures

Related bugreports: #215704

A buffer overflow in InspIRCd allows remote attackers to cause a Denial of Service.

2. Impact Information

InspIRCd (Inspire IRCd) is a modular C++ IRC daemon.

The "namesx" and "uhnames" modules do not properly validate network input, leading to a buffer overflow.

A remote attacker can send specially crafted IRC commands to the server, causing a Denial of Service.

3. Resolution Information

Unload the "uhnames" module in the InspIRCd configuration.

All InspIRCd users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-irc/inspircd-1.1.19"

4. References

Updated May 09, 2008

Summary: This is a Gentoo Linux Security Advisory

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