PeerCast: Format string vulnerability

Background

PeerCast is a media streaming system based on P2P technology.

Description

James Bercegay of the GulfTech Security Research Team discovered that PeerCast insecurely implements formatted printing when receiving a request with a malformed URL.

Impact

A remote attacker could exploit this vulnerability by sending a request with a specially crafted URL to a PeerCast server to execute arbitrary code.

Workaround

There is no known workaround at this time.

Resolution

All PeerCast users should upgrade to the latest available version:

 # emerge --sync
 # emerge --ask --oneshot --verbose ">=media-sound/peercast-0.1212"