PLIB includes sound effects, music, a complete 3D engine, font rendering, a simple Windowing library, a game scripting language, a GUI, networking, 3D math library and a collection of handy utility functions.
A buffer overflow in PLIB allows user-assisted remote attackers to execute arbitrary code via vectors involving a long error message, as demonstrated by a crafted acc file for TORCS.
Remote attackers could execute arbitrary code with the privileges of the process.
There is no known workaround at this time.
All PLIB users should upgrade to the latest version:
# emerge --sync
# emerge --ask --verbose --oneshot ">=media-libs/plib-1.8.5-r1"