It was discovered that netatalk, an implementation of the AppleTalk suite, is affected by a command injection vulnerability when processing PostScript streams via papd. This could lead to the execution of arbitrary code. Please note that this only affects installations that are configured to use a pipe command in combination with wildcard symbols substituted with values of the printed job.
For the stable distribution (etch) this problem has been fixed in version 2.0.3-4+etch1.
For the upcoming stable distribution (lenny) this problem has been fixed in version 2.0.3-11+lenny1.
For the unstable distribution (sid) this problem has been fixed in version 2.0.4~beta2-1.
We recommend that you upgrade your netatalk package.
MD5 checksums of the listed files are available in the original advisory.