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Secunia Advisory SA9797

Sun Java JAXP Nested Entity Definitions Denial of Service
Secunia Advisory SA9797
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Release Date 2003-09-19
   
Popularity 11,877 views
Comments 0 comments

Criticality level Less criticalLess critical
Impact DoS
Where From remote
Authentication level Available in Customer Area
   
Report reliability Available in Customer Area
Solution Status Vendor Patch
   
Systems affected Available in Customer Area
Approve distribution Available in Customer Area
Remediation status Secunia CSI, Secunia PSI
Automated scanning Secunia CSI, Secunia PSI
   
Software:
Sun Java JRE 1.3.x
Sun Java JRE 1.4.x
Sun Java SDK 1.3.x
Sun Java SDK 1.4.x
Secunia CVSS Score Available in Customer Area
CVE Reference(s) No CVE references.
  

Description

A vulnerability has been identified in Sun Java, which can be exploited by malicious people to cause a Denial of Service.

The problem is that JAXP can't handle XML documents with deeply nested entity definitions. This can be exploited to consume 100% CPU resources by users with access to Java based applications which accepts and parses XML documents.

An example document has been provided in the original advisory.

All versions prior to 1.4.2_01 are vulnerable.


Solution
Version 1.4.2_01 is not vulnerable to this issue.
Further details available in Customer Area

Original Advisory
http://java.sun.com/j2se/1.4.2/relnotes.html#JAXP_security

Deep Links
Links available in Customer Area


Do you have additional information related to this advisory?

Please provide information about patches, mitigating factors, new versions, exploits, faulty patches, links, and other relevant data by posting comments to this Advisory. You can also send this information to vuln@secunia.com

Subject: Sun Java JAXP Nested Entity Definitions Denial of Service
 
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