contrib/pdfmark/pdfroff.sh in GNU troff (aka groff) before 1.21 allows local users to overwrite arbitrary files via a symlink attack on a pdf#####.tmp temporary file.

References

• https://nvd.nist.gov/vuln/detail/CVE-2009-5044
• https://support.apple.com/kb/HT205031
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=538330
• http://cvsweb.openwall.com/cgi/cvsweb.cgi/Owl/packages/groff/groff-1.20.1-owl-tmp.diff
• http://cvsweb.openwall.com/cgi/cvsweb.cgi/Owl/packages/groff/groff-1.20.1-owl-tmp.diff.diff?r1=1.1;r2=1.2;f=h
• http://lists.apple.com/archives/security-announce/2015/Aug/msg00001.html
• http://openwall.com/lists/oss-security/2009/08/09/1
• http://openwall.com/lists/oss-security/2009/08/10/2
• http://openwall.com/lists/oss-security/2009/08/14/4
• http://openwall.com/lists/oss-security/2009/08/14/5
• http://secunia.com/advisories/44999
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:085
• http://www.mandriva.com/security/advisories?name=MDVSA-2013:086
• http://www.securityfocus.com/bid/36381