The (1) configure and (2) config.guess scripts in GNU troff (aka groff) 1.20.1 on Openwall GNU/*/Linux (aka Owl) improperly create temporary files upon a failure of the mktemp function, which makes it easier for local users to overwrite arbitrary files via a symlink attack on a temporary file.

References

• https://nvd.nist.gov/vuln/detail/CVE-2009-5082
• 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://openwall.com/lists/oss-security/2009/08/14/4
• http://openwall.com/lists/oss-security/2009/08/14/5