RealPlayer is a multimedia player capable of handling multiple multimedia file formats. Helix Player is the Open Source version of RealPlayer.
Piotr Bania has discovered a buffer overflow vulnerability in RealPlayer and Helix Player when processing malicious RAM files.
By enticing a user to play a specially crafted RAM file an attacker could execute arbitrary code with the permissions of the user running the application.
There is no known workaround at this time.
All RealPlayer users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-video/realplayer-10.0.4"
All Helix Player users should upgrade to the latest version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=media-video/helixplayer-1.0.4"