19%
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The scheme for selecting serial numbers was changed from incrementing a counter to random number selection, increasing the likelihood of a serial number collision.
The key serial number collision avoidance code in the key_alloc_serial function in Linux kernel 2.6.9 up to 2.6.20 allows local users to cause a denial of service (crash) via vectors that trigger a null dereference, as originally reported as "spinlock CPU recursion."
The scheme for selecting serial numbers was changed from incrementing a counter to random number selection, increasing the likelihood of a serial number collision.
CVSS 2.0 Base Score 1.9. CVSS Attack Vector: local. CVSS Attack Complexity: medium. CVSS Vector: (AV:L/AC:M/Au:N/C:N/I:N/A:P).
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