Race condition in gzip 1.2.4, 1.3.3, and earlier, when decompressing a gzipped file, allows local users to modify permissions of arbitrary files via a hard link attack on a file while it is being decompressed, whose permissions are changed by gzip after the decompression is complete.
http://lists.apple.com/archives/security-announce/2006//Aug/msg00000.html
http://rhn.redhat.com/errata/RHSA-2005-357.html
http://secunia.com/advisories/18100
http://secunia.com/advisories/21253
http://secunia.com/advisories/22033
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A10242
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A1169
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A765
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101816-1
http://www.debian.org/security/2005/dsa-752