It was discovered that the MPlayer movie player performs insufficient input sanitising on SDP session data, leading to potential execution of arbitrary code through a malformed multimedia stream.
For the stable distribution (etch), this problem has been fixed in version 1.0~rc1-12etch3.
For the unstable distribution (sid), this problem has been fixed in version 1.0~rc2-10.
We recommend that you upgrade your mplayer package.
MD5 checksums of the listed files are available in the original advisory.