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.
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.