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Linux Kernel ULE Packet Handling Denial of Service
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Secunia Advisory:
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SA21820
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Release Date:
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2006-09-11
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Last Update:
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2007-09-24
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Popularity:
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10,088 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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| OS: | Linux Kernel 2.6.x
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| CVE reference: | CVE-2006-4623
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Description:
Ang Way Chuang has reported a vulnerability in the Linux Kernel, which can be exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to an error in the ULE (Unidirectional Lightweight Encapsulation) decapsulation code when processing ULE packets. This can be exploited to crash the system by sending a malicious ULE packet with an SNDU (Sub Network Data Unit) size of 0.
The vulnerability is reported in version 2.6.17.11. Other versions may also be affected.
Solution:
Update to version 2.6.16.30 or later for the 2.6.16.x branch or 2.6.17.14 or later for the 2.6.17.x branch.
Provided and/or discovered by:
Ang Way Chuang
Changelog:
2007-09-24: Updated "Solution" section.
Original Advisory:
http://lkml.org/lkml/2006/8/20/278
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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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