CVE 2010-2059
lib/fsm.c in RPM 4.8.0 and unspecified 4.7.x and 4.6.x versions, and RPM before 4.4.3, does not properly reset the metadata of an executable file during replacement of the file in an RPM package upgrade, which might allow local users to gain privileges by creating a hard link to a vulnerable (1) setuid or (2) setgid file.
See the 
CVE page on Mitre.org
for more details.
