Ingo Saitz discovered a bug in mikmod whereby a long filename inside an archive file can overflow a buffer when the archive is being read by mikmod.
For the stable distribution (woody) this problem has been fixed in version 3.1.6-4woody3.
For old stable distribution (potato) this problem has been fixed in version 3.1.6-2potato3.
For the unstable distribution (sid) this problem is fixed in version 3.1.6-6.
We recommend that you update your mikmod package.
MD5 checksums of the listed files are available in the original advisory.