sympa.pl in sympa 5.3.4 allows local users to overwrite arbitrary files via a symlink attack on the /tmp/sympa_aliases.$$ temporary file. NOTE: wwsympa.fcgi was also reported, but the issue occurred in a dead function, so it is not a vulnerability.

References

• https://nvd.nist.gov/vuln/detail/CVE-2008-4476
• https://bugs.gentoo.org/show_bug.cgi?id=235770
• https://exchange.xforce.ibmcloud.com/vulnerabilities/44499
• http://bugs.debian.org/496405
• http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=494969
• http://dev.gentoo.org/~rbu/security/debiantemp/sympa
• http://lists.debian.org/debian-devel/2008/08/msg00312.html
• http://secunia.com/advisories/31458
• http://uvw.ru/report.lenny.txt
• http://www.openwall.com/lists/oss-security/2008/10/30/2
• http://www.securityfocus.com/bid/30727