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Linux Kernel "lease_init()" Denial of Service Vulnerability
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Secunia Advisory:
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SA20083
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Release Date:
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2006-05-11
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Last Update:
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2006-05-15
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Popularity:
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9,235 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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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-2006-1860
CVE-2006-1859
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Description:
A vulnerability has been reported in the Linux Kernel, which potentially can be exploited by malicious, local users to cause a DoS (Denial of Service).
The vulnerability is caused due to a error within the "lease_init()" function in "fs/locks.c". This causes it to free memory that may not have been allocated using the "locks_alloc_lock()" function. This may cause the kernel to crash when the "fcntl_setlease()" function is called.
Note: A slab leak in "__setlease()" due to an uninitialised return value has also been reported.
Solution:
Update to version 2.6.16.16.
http://kernel.org/
Provided and/or discovered by:
Daniel Hokka Zakrisson and B. Steinbrink.
Changelog:
2006-05-15: Added CVE reference.
Original Advisory:
Kernel.org:
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.16
http://www.kernel.org/git/?p=linux/ke...e637c94a9b041833947c79110d6c02fff8618
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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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