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Category:   Application (Web Server/CGI)  >   Apache HTTPD Vendors:   Apache Software Foundation
(Oracle Issues Fix for Oracle Linux) Apache HTTPD Multiple Flaws Let Remote Users Deny Service, Conduct HTTP Response Splitting Attacks, and Access and Modify Session Data
SecurityTracker Alert ID:  1038265
SecurityTracker URL:  http://securitytracker.com/id/1038265
CVE Reference:   CVE-2016-0736, CVE-2016-2161, CVE-2016-8743   (Links to External Site)
Date:  Apr 14 2017
Impact:   Denial of service via network, Disclosure of authentication information, Disclosure of system information, Disclosure of user information, Modification of system information, Modification of user information
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): prior to 2.4.25
Description:   Multiple vulnerabilities were reported in Apache HTTPD. A remote user can access or modify session data. A remote user can cause the target service to crash. A remote user can conduct HTTP response splitting attacks.

The server does not strictly parse HTTP header data [CVE-2016-8743]. A remote user can submit a specially crafted URL to cause the target server to return a split response. A remote user can exploit this to spoof content on the target server, attempt to poison any intermediate web caches, or conduct cross-site scripting attacks.

A remote user can supply specially crafted data to mod_session_crypto to conduct a padding oracle attack and potentially access and modify session data [CVE-2016-0736].

A remote user can supply specially crafted data to mod_auth_digest to cause the target service to crash [CVE-2016-2161].

Alexander Neumann of RedTeam Pentesting, Maksim Malyutin, David Dennerline at IBM Security's X-Force Researchers, and Regis Leroy reported these vulnerabilities.

Impact:   A remote user can access or modify session data.

A remote user can cause the target service to crash.

A remote user can create a URL that, when loaded by the target user, will cause arbitrary content to be displayed.

A remote user may be able to poison any intermediate web caches with arbitrary content.

Solution:   Oracle has issued a fix.

The Oracle Linux advisory is available at:

http://linux.oracle.com/errata/ELSA-2017-0906.html

Vendor URL:  linux.oracle.com/errata/ELSA-2017-0906.html (Links to External Site)
Cause:   Access control error, Authentication error, Input validation error
Underlying OS:  Linux (Oracle)
Underlying OS Comments:  7

Message History:   This archive entry is a follow-up to the message listed below.
Dec 21 2016 Apache HTTPD Multiple Flaws Let Remote Users Deny Service, Conduct HTTP Response Splitting Attacks, and Access and Modify Session Data



 Source Message Contents

Date:  Wed, 12 Apr 2017 18:03:58 -0700
Subject:  [El-errata] ELSA-2017-0906 Moderate: Oracle Linux 7 httpd security and bug fix update

Oracle Linux Security Advisory ELSA-2017-0906

http://linux.oracle.com/errata/ELSA-2017-0906.html

The following updated rpms for Oracle Linux 7 have been uploaded to the 
Unbreakable Linux Network:

x86_64:
httpd-2.4.6-45.0.1.el7_3.4.x86_64.rpm
httpd-devel-2.4.6-45.0.1.el7_3.4.x86_64.rpm
httpd-manual-2.4.6-45.0.1.el7_3.4.noarch.rpm
httpd-tools-2.4.6-45.0.1.el7_3.4.x86_64.rpm
mod_ldap-2.4.6-45.0.1.el7_3.4.x86_64.rpm
mod_proxy_html-2.4.6-45.0.1.el7_3.4.x86_64.rpm
mod_session-2.4.6-45.0.1.el7_3.4.x86_64.rpm
mod_ssl-2.4.6-45.0.1.el7_3.4.x86_64.rpm


SRPMS:
http://oss.oracle.com/ol7/SRPMS-updates/httpd-2.4.6-45.0.1.el7_3.4.src.rpm



Description of changes:

[2.4.6-45.0.1.4]
- replace index.html with Oracle's index page oracle_index.html

[2.4.6-45.4]
- Resolves: #1396197 - Backport: mod_proxy_wstunnel - AH02447: err/hup
   on backconn

[2.4.6-45.3]
- prefork: fix delay completing graceful restart (#1327624)
- mod_ldap: fix authz regression, failing to rebind (#1415257)

[2.4.6-45.2]
- updated patch for CVE-2016-8743

[2.4.6-45.1]
- Resolves: #1412975 - CVE-2016-0736 CVE-2016-2161 CVE-2016-8743 httpd: 
various
   flaws


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El-errata@oss.oracle.com
https://oss.oracle.com/mailman/listinfo/el-errata
 
 


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