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Category:   Application (Web Server/CGI)  >   Apache Tomcat Vendors:   Apache Software Foundation
(Ubuntu Issues Fix for Apache Tomcat) Apache Tomcat Overflow in UTF-8 Decoder Lets Remote Users Deny Service
SecurityTracker Alert ID:  1041378
SecurityTracker URL:  http://securitytracker.com/id/1041378
CVE Reference:   CVE-2018-1336   (Links to External Site)
Date:  Jul 26 2018
Impact:   Denial of service via network
Fix Available:  Yes  Vendor Confirmed:  Yes  

Description:   A vulnerability was reported in Apache Tomcat. A remote user can cause denial of service conditions on the target system. Apache Tomcat is affected.

A remote user can send specially crafted data containing supplementary characters to trigger an overflow in the UTF-8 decoder and cause the target service to enter an infinite loop.

Impact:   A remote user can cause the target service to enter an infinite loop.
Solution:   Ubuntu has issued a fix for Apache Tomcat.

The Ubuntu advisory is available at:

https://usn.ubuntu.com/usn/usn-3723-1

Vendor URL:  usn.ubuntu.com/usn/usn-3723-1 (Links to External Site)
Cause:   Boundary error, State error
Underlying OS:  Linux (Ubuntu)
Underlying OS Comments:  14.04 LTS, 16.04 LTS

Message History:   This archive entry is a follow-up to the message listed below.
Jul 26 2018 Apache Tomcat Overflow in UTF-8 Decoder Lets Remote Users Deny Service



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