Ventrilo: Denial of Service

1. Gentoo Linux Security Advisory

Package	Vulnerable versions	Unaffected versions	Architecture(s)
media-sound/ventrilo-server-bin	< 3.0.3	>= 3.0.3	All supported architectures

Related bugreports: #234819

A vulnerability has been discovered in Ventrilo, allowing for a Denial of Service.

2. Impact Information

Ventrilo is a Voice over IP group communication server.

Luigi Auriemma reported a NULL pointer dereference in Ventrilo when processing packets with an invalid version number followed by another packet.

A remote attacker could send specially crafted packets to the server, resulting in a crash.

3. Resolution Information

There is no known workaround at this time.

All Ventrilo users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=media-sound/ventrilo-server-bin-3.0.3"

4. References

Page updated April 14, 2009

Summary: This is a Gentoo Linux Security Advisory

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