Buffer overflow in the perf_copy_attr function in kernel/perf_counter.c in the Linux kernel 2.6.31-rc1 allows local users to cause a denial of service (crash) and execute arbitrary code via a "big size data" to the perf_counter_open system call.
CVSS Severity (version 2.0):
Impact Subscore: 6.9
Exploitability Subscore: 3.9
CVSS Version 2 Metrics:
Access Vector: Locally exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows disruption of service
Official Statement from Red Hat (09/21/2009)
Not vulnerable. This issue only affected kernels version v2.6.31-rc1 and later. Therefore this issue did not affect the versions of Linux kernel as shipped with Red Hat Enterprise Linux 3, 4, 5 or Red Hat Enterprise MRG.
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[linux-kernel] 20090916 [patch 15/45] perf_counter: Fix buffer overflow in perf_copy_attr()
[oss-security] 20090917 Re: CVE request: kernel: perf_counter: Fix buffer overflow in perf_copy_attr()
[oss-security] 20090916 CVE request: kernel: perf_counter: Fix buffer overflow in perf_copy_attr()
Vulnerable software and versions