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Secunia Security Advisory 38403

Secunia Security Advisory 38403
Posted Feb 2, 2010
Authored by Secunia | Site secunia.com

Secunia Security Advisory - A vulnerability has been reported in lighttpd, which can be exploited by malicious people to cause a DoS (Denial of Service).

tags | advisory, denial of service
SHA-256 | 9b92101fb7297dda1a3db8739fc563838fcc131bf5f90c68bdd03dd920487bff

Secunia Security Advisory 38403

Change Mirror Download
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Secunia integrated with Microsoft WSUS
http://secunia.com/blog/71/



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TITLE:
lighttpd Slow Request Denial of Service Vulnerability

SECUNIA ADVISORY ID:
SA38403

VERIFY ADVISORY:
http://secunia.com/advisories/38403/

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 the server allocating several
kilobytes of heap memory for each received network packet. This can
be exploited to exhaust all available memory and terminate the server
via an HTTP session sending e.g. a network packet of 1 byte per
second.

SOLUTION:
Apply patch:
http://download.lighttpd.net/lighttpd/security/lighttpd-1.4.x_fix_slow_request_dos.patch

PROVIDED AND/OR DISCOVERED BY:
Reported by Li Ming in a lighttpd bug report.

ORIGINAL ADVISORY:
http://download.lighttpd.net/lighttpd/security/lighttpd_sa_2010_01.txt
http://redmine.lighttpd.net/issues/2147

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About:
This Advisory was delivered by Secunia as a free service to help
private users keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/advisories/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/advisories/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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