lighttpd: Multiple vulnerabilities

1. Gentoo Linux Security Advisory

Advisory Reference	GLSA 200803-10 / lighttpd
Release Date	March 05, 2008
Latest Revision	March 05, 2008: 01
Impact	normal
Exploitable	remote

Package	Vulnerable versions	Unaffected versions	Architecture(s)
www-servers/lighttpd	< 1.4.18-r2	>= 1.4.18-r2	All supported architectures

Related bugreports: #211230, #211956

Synopsis

Multiple vulnerabilities have been discovered in lighttpd.

2. Impact Information

Background

lighttpd is a lightweight high-performance web server.

Description

lighttpd contains a calculation error when allocating the global file descriptor array (CVE-2008-0983). Furthermore, it sends the source of a CGI script instead of returning a 500 error (Internal Server Error) when the fork() system call fails (CVE-2008-1111).

Impact

A remote attacker could exploit these vulnerabilities to cause a Denial of Service or gain the source of a CGI script.

3. Resolution Information

Workaround

There is no known workaround at this time.

Resolution

All lighttpd users should upgrade to the latest version:

Code Listing 3.1: Resolution

# emerge --sync
# emerge --ask --oneshot --verbose ">=www-servers/lighttpd-1.4.18-r2"

4. References

Page updated March 05, 2008

Summary: This is a Gentoo Linux Security Advisory

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