GLSA-200709-16 : Lighttpd: Buffer overflow
Medium Nessus Plugin ID 26214
SynopsisThe remote Gentoo host is missing one or more security-related patches.
DescriptionThe remote host is affected by the vulnerability described in GLSA-200709-16 (Lighttpd: Buffer overflow)
Mattias Bengtsson and Philip Olausson have discovered a buffer overflow vulnerability in the function fcgi_env_add() in the file mod_fastcgi.c when processing overly long HTTP headers.
A remote attacker could send a specially crafted request to the vulnerable Lighttpd server, resulting in the remote execution of arbitrary code with privileges of the user running the web server. Note that mod_fastcgi is disabled in Gentoo's default configuration.
Edit the file /etc/lighttpd/lighttpd.conf and comment the following line: 'include mod_fastcgi.conf'
SolutionAll Lighttpd users should upgrade to the latest version:
# emerge --sync # emerge --ask --oneshot --verbose '>=www-servers/lighttpd-1.4.18'