{"cve":"CVE-2009-3234","nvd":{"published":"2009-09-17T10:30:01.313","modified":"2026-06-16T23:11:11.833","status":"Modified","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_v4":null,"cvss_v3":null,"cwes":["CWE-119"],"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"],"products":["linux:linux_kernel"],"source":"nvd","synced_at":"2026-10-19T19:54:26.868835795+00:00"},"epss":{"cve":"CVE-2009-3234","score":0.01795,"percentile":0.78434,"date":"2026-10-31"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}