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lighttpd File Descriptor Array Denial of Service Vulnerability

Secunia Advisory: SA29066  
Release Date: 2008-02-22
Last Update: 2008-03-11

Critical:
Moderately critical
Impact: DoS
Where: From remote
Solution Status: Vendor Patch

Software:lighttpd 1.x

CVE reference:CVE-2008-0983 (Secunia mirror)
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Description:
A vulnerability has been reported in lighttpd, which can be exploited by malicious people to cause a DoS (Denial of Service).

The vulnerability is caused due to a calculation error when allocating the global file descriptor array and can be exploited to crash an affected server.

The vulnerability is reported in version 1.4.18. Other versions may also be affected.

Solution:
Update to version 1.4.19.

Provided and/or discovered by:
fdeletang

Changelog:
2008-02-28: Added CVE reference.
2008-03-11: Updated "Solution" section, added new link to the "Original Advisory" section.

Original Advisory:
http://www.lighttpd.net/security/lighttpd_sa_2008_01.txt
http://trac.lighttpd.net/trac/ticket/1562


Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.

Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.

8 Related Secunia Security Advisories

1. lighttpd OpenSSL Error Queue Denial of Service Vulnerability
2. lighttpd mod_cgi and mod_userdir Information Disclosure Security Issues
3. lighttpd mod_fastcgi PHP Header Overflow
4. lighttpd Multiple Vulnerabilities
5. lighttpd "mtime" and "\r\n\r\n\" Denial of Service Vulnerabilities
6. Lighttpd Script Source Disclosure Vulnerability
7. Lighttpd Case-Insensitive Filename Source Code Disclosure
8. lighttpd "%00" Application Source Code Disclosure Vulnerability


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