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Category:   Application (Web Server/CGI)  >   Red Hat Network Proxy Server Vendors:   Red Hat
(Red Hat Issues Fix for Red Hat Network Proxy Server) mod_perl Input Validation Flaw in PerlRun Module Lets Remote Users Deny Service
SecurityTracker Alert ID:  1020067
SecurityTracker URL:  http://securitytracker.com/id/1020067
CVE Reference:   CVE-2007-1349   (Links to External Site)
Date:  May 20 2008
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): 5.0
Description:   A vulnerability was reported in mod_perl. A remote user can cause denial of service conditions. Red Hat Network Proxy Server is affected.

The Apache::PerlRun module does not properly escape user-supplied data in the PATH_INFO variable before using the data in evaluating a regular expression. A remote user can request a specially crafted URL to potentially cause mod_perl to consume excessive CPU resources on the target system.

Randal L. Schwartz reported this vulnerability in March 2007.

The original advisory is available at:

http://www.gossamer-threads.com/lists/modperl/modperl/92739

Impact:   A remote user can cause excessive resource consumption on the target system.
Solution:   Red Hat has released a fix for Red Hat Network Proxy Server, which is affected by this vulnerability.

The Red Hat advisory is available at:

https://rhn.redhat.com/errata/RHSA-2008-0263.html

Cause:   Input validation error
Underlying OS:  Linux (Red Hat Enterprise)
Underlying OS Comments:  4

Message History:   This archive entry is a follow-up to the message listed below.
Jun 18 2007 mod_perl Input Validation Flaw in PerlRun Module Lets Remote Users Deny Service



 Source Message Contents

Subject:  [RHSA-2008:0263-01] Low: Red Hat Network Proxy Server security


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=====================================================================
                   Red Hat Security Advisory

Synopsis:          Low: Red Hat Network Proxy Server security update
Advisory ID:       RHSA-2008:0263-01
Product:           Red Hat Network Proxy Server
Advisory URL:      https://rhn.redhat.com/errata/RHSA-2008-0263.html
Issue date:        2008-05-20
CVE Names:         CVE-2006-1329 CVE-2006-5752 CVE-2007-1349 
                   CVE-2007-3304 CVE-2007-5000 CVE-2007-6388 
=====================================================================

1. Summary:

Red Hat Network Proxy Server version 5.0.2 is now available. This update
includes fixes for a number of security issues in Red Hat Network Proxy
Server components.

This update has been rated as having low security impact by the Red
Hat Security Response Team.

2. Relevant releases/architectures:

Red Hat Network Proxy v 5.0 (RHEL v.4 AS) - i386

3. Description:

The Red Hat Network Proxy Server 5.0.2 release corrects several security
vulnerabilities in several shipped components. In a typical operating
environment, these components are not exposed to users of Proxy Server in a
vulnerable manner. These security updates will reduce risk in unique Proxy
Server environments.

Multiple flaws were fixed in the Apache HTTPD server. These flaws could
result in a cross-site scripting or denial-of-service attack.
(CVE-2007-6388, CVE-2007-5000, CVE-2007-3304, CVE-2006-5752)

A denial-of-service flaw was fixed in mod_perl. (CVE-2007-1349)

A denial-of-service flaw was fixed in the jabberd server. (CVE-2006-1329)

Users of Red Hat Network Proxy Server 5.0 are advised to upgrade to 5.0.2,
which resolves these issues.

4. Solution:

Before applying this update, make sure that all previously-released
errata relevant to your system have been applied.

This update is available via Red Hat Network.  Details on how to use 
the Red Hat Network to apply this update are available at
http://kbase.redhat.com/faq/FAQ_58_10188

5. Bugs fixed (http://bugzilla.redhat.com/):

240423 - CVE-2007-1349 mod_perl PerlRun denial of service
245111 - CVE-2007-3304 httpd scoreboard lack of PID protection
245112 - CVE-2006-5752 httpd mod_status XSS
419931 - CVE-2007-5000 mod_imagemap XSS
427228 - CVE-2007-6388 apache mod_status cross-site scripting
429254 - CVE-2006-1329 jabberd SASL DoS

6. Package List:

Red Hat Network Proxy v 5.0 (RHEL v.4 AS):

i386:
jabberd-2.0s10-3.38.rhn.i386.rpm
rhn-apache-1.3.27-36.rhn.rhel4.i386.rpm
rhn-modperl-1.29-16.rhel4.i386.rpm

These packages are GPG signed by Red Hat for security.  Our key and 
details on how to verify the signature are available from
https://www.redhat.com/security/team/key/#package

7. References:

http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-1329
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-5752
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-1349
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-3304
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-5000
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2007-6388
http://www.redhat.com/security/updates/classification/#low

8. Contact:

The Red Hat security contact is <secalert@redhat.com>.  More contact
details at https://www.redhat.com/security/team/contact/

Copyright 2008 Red Hat, Inc.
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