EnergyMech: Denial of Service

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
net-irc/emech	< 3.0.2	>= 3.0.2	All supported architectures

Related bugreports: #132749

A Denial of Service vulnerability was discovered in EnergyMech that is easily exploitable via IRC.

2. Impact Information

EnergyMech is an IRC bot programmed in C.

A bug in EnergyMech fails to handle empty CTCP NOTICEs correctly, and will cause a crash from a segmentation fault.

By sending an empty CTCP NOTICE, a remote attacker could exploit this vulnerability to cause a Denial of Service.

3. Resolution Information

There is no known workaround at this time.

All EnergyMech users should update to the latest stable version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=net-irc/emech-3.0.2"

4. References

Page updated June 26, 2006

Summary: This is a Gentoo Linux Security Advisory

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