A Debian bug report  indicated that the pdfroff utility uses $$ (the current process's PID) to create predictable temporary files.
pdfroff is not included in older versions of groff as provided with Red Hat Enterprise Linux 6 or earlier (1.18.1), but is included in 1.20 and higher, so Fedora 14 and higher are affected.
As well, older groff includes the groff-22.214.171.124-sectmp.patch patch which fixes other temporary file issues, however Fedora 14 and higher do not include a similar patch. Recommend using the Openwall patch  in Fedora 14 and higher to secure this flaw and other temporary file issues that had previously been protected with the aforementioned patch.
Not vulnerable. This issue did not affect the versions of groff as shipped with Red Hat Enterprise Linux 4, 5, or 6.
Created groff tracking bugs for this issue
Affects: fedora-14 [bug 709414]
Affects: fedora-15 [bug 709415]
groff-1.21-4.fc15 has been pushed to the Fedora 15 stable repository. If problems still persist, please make note of it in this bug report.
groff-1.21-4.fc16 has been pushed to the Fedora 16 stable repository. If problems still persist, please make note of it in this bug report.
groff-1.21-9.fc17 has been pushed to the Fedora 17 stable repository. If problems still persist, please make note of it in this bug report.