CVE-2009-3234 EXPLOIT
4.9
MEDIUM · CVSS 2.0 · EPSS 1.8% (pctl 78)
Patch early
A public exploit exists.
Description
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.
Scoring
| CVSS | 4.9 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:L/AC:L/Au:N/C:N/I:N/A:C |
| EPSS | 1.8% — more likely to be exploited than 78% of all CVEs |
| Weakness | CWE-119 |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2009-09-17 |
| Last modified | 2026-06-16 |
Affected (1)
| Vendor | Product |
|---|---|
| linux | linux kernel |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Linux Kernel 2.6.31 - 'perf_counter_open()' Local Buffer Overflow | 2009-09-16 |
References
- http://article.gmane.org/gmane.linux.kernel/890654
- http://www.openwall.com/lists/oss-security/2009/09/16/1
- http://www.openwall.com/lists/oss-security/2009/09/17/13
- http://www.securityfocus.com/bid/36423
- http://article.gmane.org/gmane.linux.kernel/890654
- http://www.openwall.com/lists/oss-security/2009/09/16/1
- http://www.openwall.com/lists/oss-security/2009/09/17/13
- http://www.securityfocus.com/bid/36423
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