CVE-2013-4559 Information

Description

lighttpd before 1.4.33 does not check the return value of the (1) setuid (2) setgid or (3) setgroups functions which might cause lighttpd to run as root if it is restarted and allows remote attackers to gain privileges as demonstrated by multiple calls to the clone function that cause setuid to fail when the user process limit is reached.

Reference

http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2013_02.txt http://lists.opensuse.org/opensuse-updates/2014-01/msg00049.html http://marc.info/?l=bugtraq&m=141576815022399&w=2 http://secunia.com/advisories/55682 http://www.openwall.com/lists/oss-security/2013/11/12/4 https://kc.mcafee.com/corporate/index?page=content&id=SB10310 https://www.debian.org/security/2013/dsa-2795