vulnerability announce CVE-2009-3234
Linux kernel: privilege elevation via perf_counter_open
Synthesis of the vulnerability
A local attacker can generate a buffer overflow in perf_counter_open() in order to obtain system privileges.Impacted products: Linux
BID-36423, CVE-2009-3234, VIGILANCE-VUL-9027.
Description of the vulnerability
The Linux kernel version 2.6.31 provides the perf_counter_open() system call, to obtain statistics.
Parameters of perf_counter_open() are transmitted to perf_copy_attr(), which does not check if the size to copy is superior to the size of attributes. An overflow this occurs.
A local attacker can therefore generate a buffer overflow in perf_counter_open() in order to obtain system privileges.Complete Vigil@nce bulletin....
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