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Secunia Security Advisory 35781

Secunia Security Advisory 35781
Posted Jul 10, 2009
Authored by Secunia | Site secunia.com

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

tags | advisory, denial of service
SHA-256 | 062ac5c18a699b8fc271666b2b32f5a889ceab781ceba215dd6416e537977b71

Secunia Security Advisory 35781

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For more information visit:
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TITLE:
Apache Modules Client Disconnect Denial of Service

SECUNIA ADVISORY ID:
SA35781

VERIFY ADVISORY:
http://secunia.com/advisories/35781/

DESCRIPTION:
A weakness has been reported in Apache, which can be exploited by
malicious people to cause a DoS (Denial of Service).

The weakness is caused due to Apache not properly stopping certain
modules when a client disconnects. This can be exploited to e.g.
cause a high CPU load by requesting large files which are compressed
by mod_deflate and then disconnecting.

Successful exploitation requires that e.g. mod_deflate or a similar
module is enabled.

SOLUTION:
Fixed in the SVN repository.
http://svn.apache.org/viewvc?view=rev&revision=791454

PROVIDED AND/OR DISCOVERED BY:
Reported in a Debian bug by Fran├žois Guerraz.

ORIGINAL ADVISORY:
Debian bug #534712:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=534712

SVN commit:
http://svn.apache.org/viewvc?view=rev&revision=791454

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About:
This Advisory was delivered by Secunia as a free service to help
everybody 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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