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Linux Kernel "atalk_sum_skb()" AppleTalk Denial of Service
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Secunia Advisory:
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SA24793
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Release Date:
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2007-04-10
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Last Update:
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2007-04-12
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Popularity:
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6,918 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 local network
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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-2007-1357
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Description:
A vulnerability has been reported 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 within the "atalk_sum_skb()" function when creating the checksum of an AppleTalk frame that is shorter than specified in the header. This can be exploited to trigger a "BUG_ON" condition by sending a specially crafted AppleTalk frame to a vulnerable system.
Successful exploitation requires that the AppleTalk kernel module is loaded.
Solution:
Update to version 2.6.20.5.
Provided and/or discovered by:
Philipp Richter
Changelog:
2007-04-12: Added CVE reference.
Original Advisory:
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.20.5
http://bugzilla.kernel.org/show_bug.cgi?id=2979
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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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