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Category:   Application (Generic)  >   Apache Subversion Vendors:   Apache Software Foundation, subversion.tigris.org
Apache Subversion XML External Entity Processing Flaw Lets Remote Users Deny Service
SecurityTracker Alert ID:  1037361
SecurityTracker URL:  http://securitytracker.com/id/1037361
CVE Reference:   CVE-2016-8734   (Links to External Site)
Date:  Nov 30 2016
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  
Version(s): client versions 1.4.0 - 1.8.16, 1.9.0 - 1.9.4
Description:   A vulnerability was reported in Apache Subversion. A remote user can conduct XML external entity attacks to deny service on the target system.

A remote user can supply specially crafted XML External Entity (XXE) data to consume excessive CPU or memory resources on the target system.

The Subversion client is affected when using 'https://' URLs.

The Subversion mod_dontdothat module is affected.

Florian Weimer of Red Hat reported this vulnerability.

Impact:   A remote user can consume excessive CPU or memory resources on the target system.
Solution:   The vendor has issued a fix (client versions 1.8.17, 1.9.5).

The vendor advisory is available at:

http://subversion.apache.org/security/CVE-2016-8734-advisory.txt

Vendor URL:  subversion.apache.org/security/CVE-2016-8734-advisory.txt (Links to External Site)
Cause:   Resource error
Underlying OS:  Linux (Any), UNIX (Any), Windows (Any)

Message History:   This archive entry has one or more follow-up message(s) listed below.
Aug 11 2017 (Ubuntu Issues Fix) Apache Subversion XML External Entity Processing Flaw Lets Remote Users Deny Service
Ubuntu has issued a fix for Ubuntu Linux 14.04 LTS, 16.04 LTS, and 17.04.



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