Steve Kemp from the Debian Security Audit project discovered that gsambad, a GTK+ configuration tool for samba, uses temporary files in an unsafe manner which may be exploited to truncate arbitrary files from the local system.
For the stable distribution (etch) this problem has been fixed in version 0.1.4-2etch1.
For the unstable distribution (sid) this problem will be fixed shortly.
We recommend that you upgrade your gsambad package.
MD5 checksums of the listed files are available in the original advisory.