A buffer overflow in imagemagick's EXIF parsing routine was fixed in version 6.1.0: Trying to query EXIF information of a malicious image file might result in execution of arbitrary code. There is much more information in the Debian BTS. http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=278401
This issue should also affect RHEL2.1
This issue will be fixed by RHSA-2004:636
This issue was fixed on 2004-12-08 by RHSA-2004:636.