Tim Dijkstra discovered a problem during the upgrade of geneweb, a genealogy software with web interface. The maintainer scripts automatically converted files without checking their permissions and content, which could lead to the modification of arbitrary files.
For the stable distribution (woody) this problem has been fixed in version 4.06-2woody1.
For the unstable distribution (sid) this problem has been fixed in version 4.10-7.
We recommend that you upgrade your geneweb package.
MD5 checksums of the listed files are available in the original advisory.