CVE-2009-3234
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.
Does this matter?
A public exploit is published in Exploit-DB (verified), so the technical barrier is gone even though the severity is medium and EPSS is 1.8%. Treat it as high on anything reachable from the internet.
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.
- CVSS 2.0
- 4.9 MEDIUMAV:L/AC:L/Au:N/C:N/I:N/A:C
- EPSS
- 1.80% probability · 78th percentile
- Public exploits
- 1 in Exploit-DB · verified · first 16 September 2009
- CISA KEV
- Not listed
- Weakness
- CWE-119
- Affected
- linux/linux kernel
- Source
- cve@mitre.org
EPSS 1.8% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
Public exploits (1)
Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.
References
- http://article.gmane.org/gmane.linux.kernel/890654Exploit
- 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/890654Exploit
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.