tixxDZ discovered a vulnerability in the mplayer movie player. Missing data validation in mplayer"s real data transport implementation enable an integer underflow and consequently an unbounded buffer operation. A maliciously crafted stream could thus enable an attacker to execute arbitrary code. No Common Vulnerabilities and Exposures project identifier is available for this issue. For the stable distribution , this problem has been fixed in version 1.0~rc2-17+lenny3.2. We recommend that you upgrade your mplayer packages.