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Linux Kernel s390 "copy_from_user" Information Disclosure
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Secunia Advisory:
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SA22289
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Release Date:
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2006-10-06
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Last Update:
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2006-10-16
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Popularity:
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8,836 views
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Critical:
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Less critical
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Impact:
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Exposure of sensitive information
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Where:
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Local system
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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-2006-5174
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Description:
A vulnerability has been reported in the Linux Kernel, which can be exploited by malicious, local users to gain knowledge of potentially sensitive information.
The vulnerability is caused due to the "copy_from_user" function not correctly clearing kernel buffers after receiving a fault because of invalid user space addresses. This can be exploited to read uninitialised kernel memory by appending to files from invalid addresses.
Note: The vulnerability affects the s390 architecture only.
Solution:
Update to version 2.6.18.1.
http://kernel.org/
Provided and/or discovered by:
Reported by the vendor.
Changelog:
2006-10-16: Updated "Solution" section.
Original Advisory:
http://www.kernel.org/git/?p=linux/ke...49ba6b0ddf3e9d965257cc0513193650b3ea8
http://www.kernel.org/pub/linux/kernel/v2.6/testing/ChangeLog-2.6.19-rc1
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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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