Race condition in cpio 2.6 and earlier 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 cpio after the decompression is complete.
ftp://ftp.freebsd.org/pub/FreeBSD/CERT/advisories/FreeBSD-SA-06:03.cpio.asc
ftp://ftp.sco.com/pub/updates/OpenServer/SCOSA-2006.2/SCOSA-2006.2.txt
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2005.32/SCOSA-2005.32.txt
lists.suse.com/archive/suse-security-announce/2006-May/0004.html
marc.info/?l=bugtraq&m=111342664116120&w=2
secunia.com/advisories/16998
secunia.com/advisories/17123
secunia.com/advisories/17532
secunia.com/advisories/18290
secunia.com/advisories/18395
secunia.com/advisories/20117
www.debian.org/security/2005/dsa-846
www.osvdb.org/15725
www.redhat.com/support/errata/RHSA-2005-378.html
www.redhat.com/support/errata/RHSA-2005-806.html
www.securityfocus.com/bid/13159
www.ubuntu.com/usn/usn-189-1
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A358
oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9783