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Sun Java JAXP Nested Entity Definitions Denial of Service
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Secunia Advisory:
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SA9797
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Release Date:
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2003-09-19
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Popularity:
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9,157 views
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Critical:
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Less critical
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Impact:
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DoS
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Where:
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From remote
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Solution Status:
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Vendor Patch
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| 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
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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.
http://java.sun.com/j2se/1.4.2/download.html
Original Advisory:
http://java.sun.com/j2se/1.4.2/relnotes.html#JAXP_security
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About this Secunia Advisory
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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