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Sun Java JRE Large Temporary File Creation Vulnerability
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Secunia Advisory:
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SA20132
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Release Date:
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2006-05-16
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Last Update:
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2006-06-05
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Popularity:
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14,733 views
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Critical:
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Not 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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Unpatched
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| Software: | Sun Java JDK 1.5.x
Sun Java JRE 1.4.x
Sun Java JRE 1.5.x / 5.x
Sun Java SDK 1.4.x
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| CVE reference: | CVE-2006-2426
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Description:
Marc Schoenefeld has discovered a vulnerability in Sun Java JRE (Java Runtime Environment), which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to missing restrictions on temporary file creation. This can be exploited by a malicious applet to create large files in the temporary folder via e.g. the "Font.createFont()" method.
Successful exploitation causes a vulnerable system to run out of disk space.
The vulnerability has been confirmed in JDK 5.0 Update 6 and has also been reported in SDK 1.4.2_11 on the Microsoft Windows platform.
Solution:
Remove files created by malicious applets in the temporary folder "%temp%" when running out of disk space after an attack.
Provided and/or discovered by:
Marc Schoenefeld
Changelog:
2006-06-05: Added CVE reference.
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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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