DoS Holes Plugged in Apache HTTP Server

[InfoSec News <isn () c4i org>]

Forwarded from: "eric wolbrom, CISSP" <eric () shtech net>

http://www.internetnews.com/dev-news/article.php/2232981

July 9, 2003 
By Ryan Naraine

The Apache Software Foundation on Monday released a new version of its 
open-source Web server project to plug four potentially serious 
security holes. 

The latest update to the Apache 2.0 HTTP Server (version 2.0.47) is 
described as a security and bug fix release to plug holes that could 
lead to denial-of-service attacks.

The Foundation warned that the SSLCipherSuite directive being used to 
upgrade from a weak ciphersuite to a strong one could result in the 
weak ciphersuite being used in place of the strong one. The previous 
Apache HTTP Server version also contains a bug in the prefork MPM 
where certain errors returned by accept() on rarely accessed ports 
could cause temporal DoS.

Another DoS security vulnerability, caused when target host is IPv6, 
was also patched. Apache explained that ftp proxy server can't create 
IPv6 socket. The Apache Foundation also warned older versions of the 
server would crash when going into an infinite loop because of too 
many subsequent internal redirects and nested subrequests.

The Apache 2.0 HTTP Server project, which is developed and maintained 
by volunteers, dominates the Web server market. At the end of June, 
Netcraft statistics found the Apache server commanding a 67 percent 
share (29 million sites) of the market, well ahead of competing 
products from Microsoft and Sun Microsystems.



_______________________________________________________________________
eric wolbrom, CISSP                     Safe Harbor Technologies
President & CIO                         66 Garlen Road
Voice 914.767.9090                              Katonah, NY 10536
Fax   914.767.3911                              http://www.shtech.net
_______________________________________________________________________



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